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Finding the Fourth Proportional to 283,755.40, 425,633.10 and 125,816.20

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Solution

The fourth proportional to 283,755.40, 425,633.10 and 125,816.20 is: 188,724.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,755.40 : 425,633.10 = 125,816.20 : x
  2. Step 2: Convert to fraction form
    283,755.40/425,633.10 = 125,816.20/x
  3. Step 3: Cross multiply
    283,755.40x = 425,633.10 × 125,816.20
  4. Step 4: Simplify right side
    283,755.40x = 53,551,539,236.22
  5. Step 5: Solve for x
    x = 53,551,539,236.22/283,755.40
  6. Step 6: Final answer
    x = 188,724.30

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Similar ratio
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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.