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Finding the Fourth Proportional to 247,209.60, 370,814.40 and 80,997.60

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Solution

The fourth proportional to 247,209.60, 370,814.40 and 80,997.60 is: 121,496.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,209.60 : 370,814.40 = 80,997.60 : x
  2. Step 2: Convert to fraction form
    247,209.60/370,814.40 = 80,997.60/x
  3. Step 3: Cross multiply
    247,209.60x = 370,814.40 × 80,997.60
  4. Step 4: Simplify right side
    247,209.60x = 30,035,076,445.44
  5. Step 5: Solve for x
    x = 30,035,076,445.44/247,209.60
  6. Step 6: Final answer
    x = 121,496.40

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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.