Home / 215,731.96-297,711.56-120,244.80

Finding the Fourth Proportional to 215,731.96, 297,711.56 and 120,244.80

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Solution

The fourth proportional to 215,731.96, 297,711.56 and 120,244.80 is: 165,938.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,731.96 : 297,711.56 = 120,244.80 : x
  2. Step 2: Convert to fraction form
    215,731.96/297,711.56 = 120,244.80/x
  3. Step 3: Cross multiply
    215,731.96x = 297,711.56 × 120,244.80
  4. Step 4: Simplify right side
    215,731.96x = 35,798,266,989.89
  5. Step 5: Solve for x
    x = 35,798,266,989.89/215,731.96
  6. Step 6: Final answer
    x = 165,938.64

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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.