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Finding the Fourth Proportional to 323,373.17, 485,037.18 and 120,930.77

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Solution

The fourth proportional to 323,373.17, 485,037.18 and 120,930.77 is: 181,387.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,373.17 : 485,037.18 = 120,930.77 : x
  2. Step 2: Convert to fraction form
    323,373.17/485,037.18 = 120,930.77/x
  3. Step 3: Cross multiply
    323,373.17x = 485,037.18 × 120,930.77
  4. Step 4: Simplify right side
    323,373.17x = 58,655,920,868.62
  5. Step 5: Solve for x
    x = 58,655,920,868.62/323,373.17
  6. Step 6: Final answer
    x = 181,387.72

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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.