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Finding the Fourth Proportional to 465,885.52, 642,877.50 and 272,338.54

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Solution

The fourth proportional to 465,885.52, 642,877.50 and 272,338.54 is: 375,801.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,885.52 : 642,877.50 = 272,338.54 : x
  2. Step 2: Convert to fraction form
    465,885.52/642,877.50 = 272,338.54/x
  3. Step 3: Cross multiply
    465,885.52x = 642,877.50 × 272,338.54
  4. Step 4: Simplify right side
    465,885.52x = 175,080,319,748.85
  5. Step 5: Solve for x
    x = 175,080,319,748.85/465,885.52
  6. Step 6: Final answer
    x = 375,801.16

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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.