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Finding the Fourth Proportional to 235,841.64, 325,463.70 and 135,220.20

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Solution

The fourth proportional to 235,841.64, 325,463.70 and 135,220.20 is: 186,605.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,841.64 : 325,463.70 = 135,220.20 : x
  2. Step 2: Convert to fraction form
    235,841.64/325,463.70 = 135,220.20/x
  3. Step 3: Cross multiply
    235,841.64x = 325,463.70 × 135,220.20
  4. Step 4: Simplify right side
    235,841.64x = 44,009,266,606.74
  5. Step 5: Solve for x
    x = 44,009,266,606.74/235,841.64
  6. Step 6: Final answer
    x = 186,605.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.