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Finding the Fourth Proportional to 180,752.20, 271,128.30 and 87,440.20

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Solution

The fourth proportional to 180,752.20, 271,128.30 and 87,440.20 is: 131,160.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,752.20 : 271,128.30 = 87,440.20 : x
  2. Step 2: Convert to fraction form
    180,752.20/271,128.30 = 87,440.20/x
  3. Step 3: Cross multiply
    180,752.20x = 271,128.30 × 87,440.20
  4. Step 4: Simplify right side
    180,752.20x = 23,707,512,777.66
  5. Step 5: Solve for x
    x = 23,707,512,777.66/180,752.20
  6. Step 6: Final answer
    x = 131,160.30

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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.