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Finding the Fourth Proportional to 347,374.70, 521,310.89 and 147,835.25

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Solution

The fourth proportional to 347,374.70, 521,310.89 and 147,835.25 is: 221,858.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,374.70 : 521,310.89 = 147,835.25 : x
  2. Step 2: Convert to fraction form
    347,374.70/521,310.89 = 147,835.25/x
  3. Step 3: Cross multiply
    347,374.70x = 521,310.89 × 147,835.25
  4. Step 4: Simplify right side
    347,374.70x = 77,068,123,513.91
  5. Step 5: Solve for x
    x = 77,068,123,513.91/347,374.70
  6. Step 6: Final answer
    x = 221,858.77

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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.