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Finding the Fourth Proportional to 317,774.97, 476,662.30 and 81,117.59

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Solution

The fourth proportional to 317,774.97, 476,662.30 and 81,117.59 is: 121,676.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,774.97 : 476,662.30 = 81,117.59 : x
  2. Step 2: Convert to fraction form
    317,774.97/476,662.30 = 81,117.59/x
  3. Step 3: Cross multiply
    317,774.97x = 476,662.30 × 81,117.59
  4. Step 4: Simplify right side
    317,774.97x = 38,665,694,433.75
  5. Step 5: Solve for x
    x = 38,665,694,433.75/317,774.97
  6. Step 6: Final answer
    x = 121,676.34

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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.