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Finding the Fourth Proportional to 283,380.80, 425,168.40 and 125,722.40

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Solution

The fourth proportional to 283,380.80, 425,168.40 and 125,722.40 is: 188,626.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,380.80 : 425,168.40 = 125,722.40 : x
  2. Step 2: Convert to fraction form
    283,380.80/425,168.40 = 125,722.40/x
  3. Step 3: Cross multiply
    283,380.80x = 425,168.40 × 125,722.40
  4. Step 4: Simplify right side
    283,380.80x = 53,453,191,652.16
  5. Step 5: Solve for x
    x = 53,453,191,652.16/283,380.80
  6. Step 6: Final answer
    x = 188,626.72

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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.