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Finding the Fourth Proportional to 391,848.96, 540,757.98 and 222,079.44

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Solution

The fourth proportional to 391,848.96, 540,757.98 and 222,079.44 is: 306,473.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,848.96 : 540,757.98 = 222,079.44 : x
  2. Step 2: Convert to fraction form
    391,848.96/540,757.98 = 222,079.44/x
  3. Step 3: Cross multiply
    391,848.96x = 540,757.98 × 222,079.44
  4. Step 4: Simplify right side
    391,848.96x = 120,091,229,373.93
  5. Step 5: Solve for x
    x = 120,091,229,373.93/391,848.96
  6. Step 6: Final answer
    x = 306,473.26

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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.