Home / 228,713.20-315,615.66-131,920.98

Finding the Fourth Proportional to 228,713.20, 315,615.66 and 131,920.98

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Solution

The fourth proportional to 228,713.20, 315,615.66 and 131,920.98 is: 182,046.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,713.20 : 315,615.66 = 131,920.98 : x
  2. Step 2: Convert to fraction form
    228,713.20/315,615.66 = 131,920.98/x
  3. Step 3: Cross multiply
    228,713.20x = 315,615.66 × 131,920.98
  4. Step 4: Simplify right side
    228,713.20x = 41,636,327,170.55
  5. Step 5: Solve for x
    x = 41,636,327,170.55/228,713.20
  6. Step 6: Final answer
    x = 182,046.02

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1.5x scale

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.