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Finding the Fourth Proportional to 275,027.16, 412,445.16 and 130,915.20

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Solution

The fourth proportional to 275,027.16, 412,445.16 and 130,915.20 is: 196,327.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,027.16 : 412,445.16 = 130,915.20 : x
  2. Step 2: Convert to fraction form
    275,027.16/412,445.16 = 130,915.20/x
  3. Step 3: Cross multiply
    275,027.16x = 412,445.16 × 130,915.20
  4. Step 4: Simplify right side
    275,027.16x = 53,995,340,610.43
  5. Step 5: Solve for x
    x = 53,995,340,610.43/275,027.16
  6. Step 6: Final answer
    x = 196,327.30

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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.