Home / 316,789.18-436,818.82-201,885.90

Finding the Fourth Proportional to 316,789.18, 436,818.82 and 201,885.90

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Solution

The fourth proportional to 316,789.18, 436,818.82 and 201,885.90 is: 278,379.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,789.18 : 436,818.82 = 201,885.90 : x
  2. Step 2: Convert to fraction form
    316,789.18/436,818.82 = 201,885.90/x
  3. Step 3: Cross multiply
    316,789.18x = 436,818.82 × 201,885.90
  4. Step 4: Simplify right side
    316,789.18x = 88,187,560,612.64
  5. Step 5: Solve for x
    x = 88,187,560,612.64/316,789.18
  6. Step 6: Final answer
    x = 278,379.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.