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Finding the Fourth Proportional to 425,988.38, 587,854.50 and 235,001.72

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Solution

The fourth proportional to 425,988.38, 587,854.50 and 235,001.72 is: 324,297.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,988.38 : 587,854.50 = 235,001.72 : x
  2. Step 2: Convert to fraction form
    425,988.38/587,854.50 = 235,001.72/x
  3. Step 3: Cross multiply
    425,988.38x = 587,854.50 × 235,001.72
  4. Step 4: Simplify right side
    425,988.38x = 138,146,815,670.47
  5. Step 5: Solve for x
    x = 138,146,815,670.47/425,988.38
  6. Step 6: Final answer
    x = 324,297.15

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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.