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Finding the Fourth Proportional to 338,565.10, 508,013.88 and 136,153.02

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Solution

The fourth proportional to 338,565.10, 508,013.88 and 136,153.02 is: 204,296.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,565.10 : 508,013.88 = 136,153.02 : x
  2. Step 2: Convert to fraction form
    338,565.10/508,013.88 = 136,153.02/x
  3. Step 3: Cross multiply
    338,565.10x = 508,013.88 × 136,153.02
  4. Step 4: Simplify right side
    338,565.10x = 69,167,623,283.15
  5. Step 5: Solve for x
    x = 69,167,623,283.15/338,565.10
  6. Step 6: Final answer
    x = 204,296.38

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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.