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Finding the Fourth Proportional to 323,827.52, 485,700.96 and 136,814.72

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Solution

The fourth proportional to 323,827.52, 485,700.96 and 136,814.72 is: 205,205.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,827.52 : 485,700.96 = 136,814.72 : x
  2. Step 2: Convert to fraction form
    323,827.52/485,700.96 = 136,814.72/x
  3. Step 3: Cross multiply
    323,827.52x = 485,700.96 × 136,814.72
  4. Step 4: Simplify right side
    323,827.52x = 66,451,040,846.13
  5. Step 5: Solve for x
    x = 66,451,040,846.13/323,827.52
  6. Step 6: Final answer
    x = 205,205.05

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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.