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Finding the Fourth Proportional to 283,405.80, 425,108.70 and 194,932.20

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Solution

The fourth proportional to 283,405.80, 425,108.70 and 194,932.20 is: 292,398.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,405.80 : 425,108.70 = 194,932.20 : x
  2. Step 2: Convert to fraction form
    283,405.80/425,108.70 = 194,932.20/x
  3. Step 3: Cross multiply
    283,405.80x = 425,108.70 × 194,932.20
  4. Step 4: Simplify right side
    283,405.80x = 82,867,374,130.14
  5. Step 5: Solve for x
    x = 82,867,374,130.14/283,405.80
  6. Step 6: Final answer
    x = 292,398.30

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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.