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Finding the Fourth Proportional to 323,081.33, 484,622.12 and 145,380.76

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Solution

The fourth proportional to 323,081.33, 484,622.12 and 145,380.76 is: 218,071.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,081.33 : 484,622.12 = 145,380.76 : x
  2. Step 2: Convert to fraction form
    323,081.33/484,622.12 = 145,380.76/x
  3. Step 3: Cross multiply
    323,081.33x = 484,622.12 × 145,380.76
  4. Step 4: Simplify right side
    323,081.33x = 70,454,729,695.30
  5. Step 5: Solve for x
    x = 70,454,729,695.30/323,081.33
  6. Step 6: Final answer
    x = 218,071.19

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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.