Home / 266,738.37-399,663.32-187,686.52

Finding the Fourth Proportional to 266,738.37, 399,663.32 and 187,686.52

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Solution

The fourth proportional to 266,738.37, 399,663.32 and 187,686.52 is: 281,217.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,738.37 : 399,663.32 = 187,686.52 : x
  2. Step 2: Convert to fraction form
    266,738.37/399,663.32 = 187,686.52/x
  3. Step 3: Cross multiply
    266,738.37x = 399,663.32 × 187,686.52
  4. Step 4: Simplify right side
    266,738.37x = 75,011,415,764.86
  5. Step 5: Solve for x
    x = 75,011,415,764.86/266,738.37
  6. Step 6: Final answer
    x = 281,217.20

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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.