Home / 215,753.91-297,728.10-120,257.34

Finding the Fourth Proportional to 215,753.91, 297,728.10 and 120,257.34

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Solution

The fourth proportional to 215,753.91, 297,728.10 and 120,257.34 is: 165,948.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,753.91 : 297,728.10 = 120,257.34 : x
  2. Step 2: Convert to fraction form
    215,753.91/297,728.10 = 120,257.34/x
  3. Step 3: Cross multiply
    215,753.91x = 297,728.10 × 120,257.34
  4. Step 4: Simplify right side
    215,753.91x = 35,803,989,349.25
  5. Step 5: Solve for x
    x = 35,803,989,349.25/215,753.91
  6. Step 6: Final answer
    x = 165,948.28

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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.