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Finding the Fourth Proportional to 165,081.60, 247,622.40 and 40,422.60

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Solution

The fourth proportional to 165,081.60, 247,622.40 and 40,422.60 is: 60,633.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,081.60 : 247,622.40 = 40,422.60 : x
  2. Step 2: Convert to fraction form
    165,081.60/247,622.40 = 40,422.60/x
  3. Step 3: Cross multiply
    165,081.60x = 247,622.40 × 40,422.60
  4. Step 4: Simplify right side
    165,081.60x = 10,009,541,226.24
  5. Step 5: Solve for x
    x = 10,009,541,226.24/165,081.60
  6. Step 6: Final answer
    x = 60,633.90

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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.