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Finding the Fourth Proportional to 283,753.40, 425,630.10 and 125,814.20

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Solution

The fourth proportional to 283,753.40, 425,630.10 and 125,814.20 is: 188,721.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,753.40 : 425,630.10 = 125,814.20 : x
  2. Step 2: Convert to fraction form
    283,753.40/425,630.10 = 125,814.20/x
  3. Step 3: Cross multiply
    283,753.40x = 425,630.10 × 125,814.20
  4. Step 4: Simplify right side
    283,753.40x = 53,550,310,527.42
  5. Step 5: Solve for x
    x = 53,550,310,527.42/283,753.40
  6. Step 6: Final answer
    x = 188,721.30

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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.