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Finding the Fourth Proportional to 394,750.80, 592,359.60 and 145,607.76

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Solution

The fourth proportional to 394,750.80, 592,359.60 and 145,607.76 is: 218,497.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,750.80 : 592,359.60 = 145,607.76 : x
  2. Step 2: Convert to fraction form
    394,750.80/592,359.60 = 145,607.76/x
  3. Step 3: Cross multiply
    394,750.80x = 592,359.60 × 145,607.76
  4. Step 4: Simplify right side
    394,750.80x = 86,252,154,470.50
  5. Step 5: Solve for x
    x = 86,252,154,470.50/394,750.80
  6. Step 6: Final answer
    x = 218,497.73

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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.