Home / 317,961.60-476,947.20-81,299.04

Finding the Fourth Proportional to 317,961.60, 476,947.20 and 81,299.04

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Solution

The fourth proportional to 317,961.60, 476,947.20 and 81,299.04 is: 121,949.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,961.60 : 476,947.20 = 81,299.04 : x
  2. Step 2: Convert to fraction form
    317,961.60/476,947.20 = 81,299.04/x
  3. Step 3: Cross multiply
    317,961.60x = 476,947.20 × 81,299.04
  4. Step 4: Simplify right side
    317,961.60x = 38,775,349,490.69
  5. Step 5: Solve for x
    x = 38,775,349,490.69/317,961.60
  6. Step 6: Final answer
    x = 121,949.79

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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.