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Finding the Fourth Proportional to 351,357.70, 527,034.80 and 85,118.24

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Solution

The fourth proportional to 351,357.70, 527,034.80 and 85,118.24 is: 127,676.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,357.70 : 527,034.80 = 85,118.24 : x
  2. Step 2: Convert to fraction form
    351,357.70/527,034.80 = 85,118.24/x
  3. Step 3: Cross multiply
    351,357.70x = 527,034.80 × 85,118.24
  4. Step 4: Simplify right side
    351,357.70x = 44,860,276,125.13
  5. Step 5: Solve for x
    x = 44,860,276,125.13/351,357.70
  6. Step 6: Final answer
    x = 127,676.94

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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.