Home / 228,418.45-315,213.65-126,441.76

Finding the Fourth Proportional to 228,418.45, 315,213.65 and 126,441.76

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Solution

The fourth proportional to 228,418.45, 315,213.65 and 126,441.76 is: 174,487.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,418.45 : 315,213.65 = 126,441.76 : x
  2. Step 2: Convert to fraction form
    228,418.45/315,213.65 = 126,441.76/x
  3. Step 3: Cross multiply
    228,418.45x = 315,213.65 × 126,441.76
  4. Step 4: Simplify right side
    228,418.45x = 39,856,166,473.75
  5. Step 5: Solve for x
    x = 39,856,166,473.75/228,418.45
  6. Step 6: Final answer
    x = 174,487.51

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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.