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Finding the Fourth Proportional to 360,374.40, 539,749.68 and 279,770.70

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Solution

The fourth proportional to 360,374.40, 539,749.68 and 279,770.70 is: 419,025.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,374.40 : 539,749.68 = 279,770.70 : x
  2. Step 2: Convert to fraction form
    360,374.40/539,749.68 = 279,770.70/x
  3. Step 3: Cross multiply
    360,374.40x = 539,749.68 × 279,770.70
  4. Step 4: Simplify right side
    360,374.40x = 151,006,145,798.38
  5. Step 5: Solve for x
    x = 151,006,145,798.38/360,374.40
  6. Step 6: Final answer
    x = 419,025.73

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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.