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Finding the Fourth Proportional to 279,444.53, 418,914.01 and 101,909.95

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Solution

The fourth proportional to 279,444.53, 418,914.01 and 101,909.95 is: 152,772.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,444.53 : 418,914.01 = 101,909.95 : x
  2. Step 2: Convert to fraction form
    279,444.53/418,914.01 = 101,909.95/x
  3. Step 3: Cross multiply
    279,444.53x = 418,914.01 × 101,909.95
  4. Step 4: Simplify right side
    279,444.53x = 42,691,504,893.50
  5. Step 5: Solve for x
    x = 42,691,504,893.50/279,444.53
  6. Step 6: Final answer
    x = 152,772.73

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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.