Home / 215,575.22-297,494.35-129,535.64

Finding the Fourth Proportional to 215,575.22, 297,494.35 and 129,535.64

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Solution

The fourth proportional to 215,575.22, 297,494.35 and 129,535.64 is: 178,759.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,575.22 : 297,494.35 = 129,535.64 : x
  2. Step 2: Convert to fraction form
    215,575.22/297,494.35 = 129,535.64/x
  3. Step 3: Cross multiply
    215,575.22x = 297,494.35 × 129,535.64
  4. Step 4: Simplify right side
    215,575.22x = 38,536,121,443.53
  5. Step 5: Solve for x
    x = 38,536,121,443.53/215,575.22
  6. Step 6: Final answer
    x = 178,759.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.