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Finding the Fourth Proportional to 234,687.70, 351,915.03 and 74,742.78

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Solution

The fourth proportional to 234,687.70, 351,915.03 and 74,742.78 is: 112,077.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,687.70 : 351,915.03 = 74,742.78 : x
  2. Step 2: Convert to fraction form
    234,687.70/351,915.03 = 74,742.78/x
  3. Step 3: Cross multiply
    234,687.70x = 351,915.03 × 74,742.78
  4. Step 4: Simplify right side
    234,687.70x = 26,303,107,665.98
  5. Step 5: Solve for x
    x = 26,303,107,665.98/234,687.70
  6. Step 6: Final answer
    x = 112,077.06

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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.