Home / 268,308.10-402,001.35-141,760.90

Finding the Fourth Proportional to 268,308.10, 402,001.35 and 141,760.90

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Solution

The fourth proportional to 268,308.10, 402,001.35 and 141,760.90 is: 212,397.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,308.10 : 402,001.35 = 141,760.90 : x
  2. Step 2: Convert to fraction form
    268,308.10/402,001.35 = 141,760.90/x
  3. Step 3: Cross multiply
    268,308.10x = 402,001.35 × 141,760.90
  4. Step 4: Simplify right side
    268,308.10x = 56,988,073,177.22
  5. Step 5: Solve for x
    x = 56,988,073,177.22/268,308.10
  6. Step 6: Final answer
    x = 212,397.89

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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.