Home / 215,439.55-297,279.37-124,794.78

Finding the Fourth Proportional to 215,439.55, 297,279.37 and 124,794.78

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Solution

The fourth proportional to 215,439.55, 297,279.37 and 124,794.78 is: 172,201.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,439.55 : 297,279.37 = 124,794.78 : x
  2. Step 2: Convert to fraction form
    215,439.55/297,279.37 = 124,794.78/x
  3. Step 3: Cross multiply
    215,439.55x = 297,279.37 × 124,794.78
  4. Step 4: Simplify right side
    215,439.55x = 37,098,911,916.91
  5. Step 5: Solve for x
    x = 37,098,911,916.91/215,439.55
  6. Step 6: Final answer
    x = 172,201.03

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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.