Home / 215,247.78-322,426.98-126,233.22

Finding the Fourth Proportional to 215,247.78, 322,426.98 and 126,233.22

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Solution

The fourth proportional to 215,247.78, 322,426.98 and 126,233.22 is: 189,089.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,247.78 : 322,426.98 = 126,233.22 : x
  2. Step 2: Convert to fraction form
    215,247.78/322,426.98 = 126,233.22/x
  3. Step 3: Cross multiply
    215,247.78x = 322,426.98 × 126,233.22
  4. Step 4: Simplify right side
    215,247.78x = 40,700,995,900.28
  5. Step 5: Solve for x
    x = 40,700,995,900.28/215,247.78
  6. Step 6: Final answer
    x = 189,089.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.