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Finding the Fourth Proportional to 247,179.60, 370,769.40 and 80,967.60

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Solution

The fourth proportional to 247,179.60, 370,769.40 and 80,967.60 is: 121,451.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,179.60 : 370,769.40 = 80,967.60 : x
  2. Step 2: Convert to fraction form
    247,179.60/370,769.40 = 80,967.60/x
  3. Step 3: Cross multiply
    247,179.60x = 370,769.40 × 80,967.60
  4. Step 4: Simplify right side
    247,179.60x = 30,020,308,471.44
  5. Step 5: Solve for x
    x = 30,020,308,471.44/247,179.60
  6. Step 6: Final answer
    x = 121,451.40

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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.