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Finding the Fourth Proportional to 349,634.68, 482,321.19 and 220,732.90

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Solution

The fourth proportional to 349,634.68, 482,321.19 and 220,732.90 is: 304,501.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,634.68 : 482,321.19 = 220,732.90 : x
  2. Step 2: Convert to fraction form
    349,634.68/482,321.19 = 220,732.90/x
  3. Step 3: Cross multiply
    349,634.68x = 482,321.19 × 220,732.90
  4. Step 4: Simplify right side
    349,634.68x = 106,464,155,000.15
  5. Step 5: Solve for x
    x = 106,464,155,000.15/349,634.68
  6. Step 6: Final answer
    x = 304,501.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.