Home / 215,732.47-297,712.20-120,245.23

Finding the Fourth Proportional to 215,732.47, 297,712.20 and 120,245.23

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Solution

The fourth proportional to 215,732.47, 297,712.20 and 120,245.23 is: 165,939.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,732.47 : 297,712.20 = 120,245.23 : x
  2. Step 2: Convert to fraction form
    215,732.47/297,712.20 = 120,245.23/x
  3. Step 3: Cross multiply
    215,732.47x = 297,712.20 × 120,245.23
  4. Step 4: Simplify right side
    215,732.47x = 35,798,471,962.81
  5. Step 5: Solve for x
    x = 35,798,471,962.81/215,732.47
  6. Step 6: Final answer
    x = 165,939.19

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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.