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Finding the Fourth Proportional to 278,572.59, 418,061.79 and 101,093.90

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Solution

The fourth proportional to 278,572.59, 418,061.79 and 101,093.90 is: 151,714.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,572.59 : 418,061.79 = 101,093.90 : x
  2. Step 2: Convert to fraction form
    278,572.59/418,061.79 = 101,093.90/x
  3. Step 3: Cross multiply
    278,572.59x = 418,061.79 × 101,093.90
  4. Step 4: Simplify right side
    278,572.59x = 42,263,494,701.77
  5. Step 5: Solve for x
    x = 42,263,494,701.77/278,572.59
  6. Step 6: Final answer
    x = 151,714.48

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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.