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Finding the Fourth Proportional to 372,385.28, 558,140.48 and 172,282.96

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Solution

The fourth proportional to 372,385.28, 558,140.48 and 172,282.96 is: 258,222.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,385.28 : 558,140.48 = 172,282.96 : x
  2. Step 2: Convert to fraction form
    372,385.28/558,140.48 = 172,282.96/x
  3. Step 3: Cross multiply
    372,385.28x = 558,140.48 × 172,282.96
  4. Step 4: Simplify right side
    372,385.28x = 96,158,093,990.22
  5. Step 5: Solve for x
    x = 96,158,093,990.22/372,385.28
  6. Step 6: Final answer
    x = 258,222.06

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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.