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Finding the Fourth Proportional to 323,800.52, 485,406.74 and 113,323.64

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Solution

The fourth proportional to 323,800.52, 485,406.74 and 113,323.64 is: 169,882.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,800.52 : 485,406.74 = 113,323.64 : x
  2. Step 2: Convert to fraction form
    323,800.52/485,406.74 = 113,323.64/x
  3. Step 3: Cross multiply
    323,800.52x = 485,406.74 × 113,323.64
  4. Step 4: Simplify right side
    323,800.52x = 55,008,056,513.61
  5. Step 5: Solve for x
    x = 55,008,056,513.61/323,800.52
  6. Step 6: Final answer
    x = 169,882.55

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1.5x scale

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.