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Finding the Fourth Proportional to 424,400.64, 636,601.08 and 108,857.54

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Solution

The fourth proportional to 424,400.64, 636,601.08 and 108,857.54 is: 163,286.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,400.64 : 636,601.08 = 108,857.54 : x
  2. Step 2: Convert to fraction form
    424,400.64/636,601.08 = 108,857.54/x
  3. Step 3: Cross multiply
    424,400.64x = 636,601.08 × 108,857.54
  4. Step 4: Simplify right side
    424,400.64x = 69,298,827,530.14
  5. Step 5: Solve for x
    x = 69,298,827,530.14/424,400.64
  6. Step 6: Final answer
    x = 163,286.34

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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.