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Finding the Fourth Proportional to 268,659.58, 402,657.22 and 135,577.92

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Solution

The fourth proportional to 268,659.58, 402,657.22 and 135,577.92 is: 203,199.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,659.58 : 402,657.22 = 135,577.92 : x
  2. Step 2: Convert to fraction form
    268,659.58/402,657.22 = 135,577.92/x
  3. Step 3: Cross multiply
    268,659.58x = 402,657.22 × 135,577.92
  4. Step 4: Simplify right side
    268,659.58x = 54,591,428,360.58
  5. Step 5: Solve for x
    x = 54,591,428,360.58/268,659.58
  6. Step 6: Final answer
    x = 203,199.26

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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.