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Finding the Fourth Proportional to 281,052.41, 387,978.98 and 179,214.75

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Solution

The fourth proportional to 281,052.41, 387,978.98 and 179,214.75 is: 247,397.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,052.41 : 387,978.98 = 179,214.75 : x
  2. Step 2: Convert to fraction form
    281,052.41/387,978.98 = 179,214.75/x
  3. Step 3: Cross multiply
    281,052.41x = 387,978.98 × 179,214.75
  4. Step 4: Simplify right side
    281,052.41x = 69,531,555,009.88
  5. Step 5: Solve for x
    x = 69,531,555,009.88/281,052.41
  6. Step 6: Final answer
    x = 247,397.12

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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.