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Finding the Fourth Proportional to 322,993.13, 484,489.84 and 145,292.53

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Solution

The fourth proportional to 322,993.13, 484,489.84 and 145,292.53 is: 217,938.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,993.13 : 484,489.84 = 145,292.53 : x
  2. Step 2: Convert to fraction form
    322,993.13/484,489.84 = 145,292.53/x
  3. Step 3: Cross multiply
    322,993.13x = 484,489.84 × 145,292.53
  4. Step 4: Simplify right side
    322,993.13x = 70,392,754,612.90
  5. Step 5: Solve for x
    x = 70,392,754,612.90/322,993.13
  6. Step 6: Final answer
    x = 217,938.86

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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.