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Finding the Fourth Proportional to 490,359.48, 735,581.52 and 135,373.56

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Solution

The fourth proportional to 490,359.48, 735,581.52 and 135,373.56 is: 203,072.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,359.48 : 735,581.52 = 135,373.56 : x
  2. Step 2: Convert to fraction form
    490,359.48/735,581.52 = 135,373.56/x
  3. Step 3: Cross multiply
    490,359.48x = 735,581.52 × 135,373.56
  4. Step 4: Simplify right side
    490,359.48x = 99,578,289,032.61
  5. Step 5: Solve for x
    x = 99,578,289,032.61/490,359.48
  6. Step 6: Final answer
    x = 203,072.02

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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.