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Finding the Fourth Proportional to 490,548, 735,581.28 and 220,759.68

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Solution

The fourth proportional to 490,548, 735,581.28 and 220,759.68 is: 331,031.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,548 : 735,581.28 = 220,759.68 : x
  2. Step 2: Convert to fraction form
    490,548/735,581.28 = 220,759.68/x
  3. Step 3: Cross multiply
    490,548x = 735,581.28 × 220,759.68
  4. Step 4: Simplify right side
    490,548x = 162,386,687,986.79
  5. Step 5: Solve for x
    x = 162,386,687,986.79/490,548
  6. Step 6: Final answer
    x = 331,031.19

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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.