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Finding the Fourth Proportional to 330,262.16, 455,761.76 and 187,049.88

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Solution

The fourth proportional to 330,262.16, 455,761.76 and 187,049.88 is: 258,128.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,262.16 : 455,761.76 = 187,049.88 : x
  2. Step 2: Convert to fraction form
    330,262.16/455,761.76 = 187,049.88/x
  3. Step 3: Cross multiply
    330,262.16x = 455,761.76 × 187,049.88
  4. Step 4: Simplify right side
    330,262.16x = 85,250,181,581.34
  5. Step 5: Solve for x
    x = 85,250,181,581.34/330,262.16
  6. Step 6: Final answer
    x = 258,128.82

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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.