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Finding the Fourth Proportional to 351,814.50, 527,722.17 and 85,573.17

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Solution

The fourth proportional to 351,814.50, 527,722.17 and 85,573.17 is: 128,359.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,814.50 : 527,722.17 = 85,573.17 : x
  2. Step 2: Convert to fraction form
    351,814.50/527,722.17 = 85,573.17/x
  3. Step 3: Cross multiply
    351,814.50x = 527,722.17 × 85,573.17
  4. Step 4: Simplify right side
    351,814.50x = 45,158,858,966.18
  5. Step 5: Solve for x
    x = 45,158,858,966.18/351,814.50
  6. Step 6: Final answer
    x = 128,359.86

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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.