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Finding the Fourth Proportional to 279,188.59, 418,539.88 and 179,377.15

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Solution

The fourth proportional to 279,188.59, 418,539.88 and 179,377.15 is: 268,909.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,188.59 : 418,539.88 = 179,377.15 : x
  2. Step 2: Convert to fraction form
    279,188.59/418,539.88 = 179,377.15/x
  3. Step 3: Cross multiply
    279,188.59x = 418,539.88 × 179,377.15
  4. Step 4: Simplify right side
    279,188.59x = 75,076,490,835.74
  5. Step 5: Solve for x
    x = 75,076,490,835.74/279,188.59
  6. Step 6: Final answer
    x = 268,909.60

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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.