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Finding the Fourth Proportional to 393,480.50, 590,226.02 and 123,599.84

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Solution

The fourth proportional to 393,480.50, 590,226.02 and 123,599.84 is: 185,401.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,480.50 : 590,226.02 = 123,599.84 : x
  2. Step 2: Convert to fraction form
    393,480.50/590,226.02 = 123,599.84/x
  3. Step 3: Cross multiply
    393,480.50x = 590,226.02 × 123,599.84
  4. Step 4: Simplify right side
    393,480.50x = 72,951,841,635.84
  5. Step 5: Solve for x
    x = 72,951,841,635.84/393,480.50
  6. Step 6: Final answer
    x = 185,401.42

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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.