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Finding the Fourth Proportional to 279,379.67, 418,402.47 and 160,801.76

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Solution

The fourth proportional to 279,379.67, 418,402.47 and 160,801.76 is: 240,818.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,379.67 : 418,402.47 = 160,801.76 : x
  2. Step 2: Convert to fraction form
    279,379.67/418,402.47 = 160,801.76/x
  3. Step 3: Cross multiply
    279,379.67x = 418,402.47 × 160,801.76
  4. Step 4: Simplify right side
    279,379.67x = 67,279,853,564.35
  5. Step 5: Solve for x
    x = 67,279,853,564.35/279,379.67
  6. Step 6: Final answer
    x = 240,818.72

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1.5x scale

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.