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Finding the Fourth Proportional to 165,086.60, 247,629.90 and 40,427.60

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Solution

The fourth proportional to 165,086.60, 247,629.90 and 40,427.60 is: 60,641.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,086.60 : 247,629.90 = 40,427.60 : x
  2. Step 2: Convert to fraction form
    165,086.60/247,629.90 = 40,427.60/x
  3. Step 3: Cross multiply
    165,086.60x = 247,629.90 × 40,427.60
  4. Step 4: Simplify right side
    165,086.60x = 10,011,082,545.24
  5. Step 5: Solve for x
    x = 10,011,082,545.24/165,086.60
  6. Step 6: Final answer
    x = 60,641.40

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1.5x scale

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.