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Finding the Fourth Proportional to 372,648, 558,972.18 and 119,928.48

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Solution

The fourth proportional to 372,648, 558,972.18 and 119,928.48 is: 179,892.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,648 : 558,972.18 = 119,928.48 : x
  2. Step 2: Convert to fraction form
    372,648/558,972.18 = 119,928.48/x
  3. Step 3: Cross multiply
    372,648x = 558,972.18 × 119,928.48
  4. Step 4: Simplify right side
    372,648x = 67,036,683,909.69
  5. Step 5: Solve for x
    x = 67,036,683,909.69/372,648
  6. Step 6: Final answer
    x = 179,892.78

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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.