Home / 280,218.38-420,331.23-93,229.88

Finding the Fourth Proportional to 280,218.38, 420,331.23 and 93,229.88

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Solution

The fourth proportional to 280,218.38, 420,331.23 and 93,229.88 is: 139,846.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,218.38 : 420,331.23 = 93,229.88 : x
  2. Step 2: Convert to fraction form
    280,218.38/420,331.23 = 93,229.88/x
  3. Step 3: Cross multiply
    280,218.38x = 420,331.23 × 93,229.88
  4. Step 4: Simplify right side
    280,218.38x = 39,187,428,031.50
  5. Step 5: Solve for x
    x = 39,187,428,031.50/280,218.38
  6. Step 6: Final answer
    x = 139,846.03

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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.