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Finding the Fourth Proportional to 279,640.41, 418,678.92 and 151,096.16

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Solution

The fourth proportional to 279,640.41, 418,678.92 and 151,096.16 is: 226,221.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,640.41 : 418,678.92 = 151,096.16 : x
  2. Step 2: Convert to fraction form
    279,640.41/418,678.92 = 151,096.16/x
  3. Step 3: Cross multiply
    279,640.41x = 418,678.92 × 151,096.16
  4. Step 4: Simplify right side
    279,640.41x = 63,260,774,991.55
  5. Step 5: Solve for x
    x = 63,260,774,991.55/279,640.41
  6. Step 6: Final answer
    x = 226,221.86

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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.