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Finding the Fourth Proportional to 317,456.82, 476,199.81 and 80,801.55

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Solution

The fourth proportional to 317,456.82, 476,199.81 and 80,801.55 is: 121,206.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,456.82 : 476,199.81 = 80,801.55 : x
  2. Step 2: Convert to fraction form
    317,456.82/476,199.81 = 80,801.55/x
  3. Step 3: Cross multiply
    317,456.82x = 476,199.81 × 80,801.55
  4. Step 4: Simplify right side
    317,456.82x = 38,477,682,757.71
  5. Step 5: Solve for x
    x = 38,477,682,757.71/317,456.82
  6. Step 6: Final answer
    x = 121,206.04

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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.