Home / 215,621.40-297,534.72-125,005.80

Finding the Fourth Proportional to 215,621.40, 297,534.72 and 125,005.80

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Solution

The fourth proportional to 215,621.40, 297,534.72 and 125,005.80 is: 172,494.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,621.40 : 297,534.72 = 125,005.80 : x
  2. Step 2: Convert to fraction form
    215,621.40/297,534.72 = 125,005.80/x
  3. Step 3: Cross multiply
    215,621.40x = 297,534.72 × 125,005.80
  4. Step 4: Simplify right side
    215,621.40x = 37,193,565,701.38
  5. Step 5: Solve for x
    x = 37,193,565,701.38/215,621.40
  6. Step 6: Final answer
    x = 172,494.78

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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.