Home / 187,221.70-280,832.55-145,231.30

Finding the Fourth Proportional to 187,221.70, 280,832.55 and 145,231.30

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Solution

The fourth proportional to 187,221.70, 280,832.55 and 145,231.30 is: 217,846.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,221.70 : 280,832.55 = 145,231.30 : x
  2. Step 2: Convert to fraction form
    187,221.70/280,832.55 = 145,231.30/x
  3. Step 3: Cross multiply
    187,221.70x = 280,832.55 × 145,231.30
  4. Step 4: Simplify right side
    187,221.70x = 40,785,676,318.82
  5. Step 5: Solve for x
    x = 40,785,676,318.82/187,221.70
  6. Step 6: Final answer
    x = 217,846.95

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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.