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Finding the Fourth Proportional to 637,425.77, 956,138.65 and 216,701.64

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Solution

The fourth proportional to 637,425.77, 956,138.65 and 216,701.64 is: 325,052.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,425.77 : 956,138.65 = 216,701.64 : x
  2. Step 2: Convert to fraction form
    637,425.77/956,138.65 = 216,701.64/x
  3. Step 3: Cross multiply
    637,425.77x = 956,138.65 × 216,701.64
  4. Step 4: Simplify right side
    637,425.77x = 207,196,812,980.63
  5. Step 5: Solve for x
    x = 207,196,812,980.63/637,425.77
  6. Step 6: Final answer
    x = 325,052.46

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.