Home / 228,711.56-315,631.98-126,736.76

Finding the Fourth Proportional to 228,711.56, 315,631.98 and 126,736.76

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Solution

The fourth proportional to 228,711.56, 315,631.98 and 126,736.76 is: 174,902.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,711.56 : 315,631.98 = 126,736.76 : x
  2. Step 2: Convert to fraction form
    228,711.56/315,631.98 = 126,736.76/x
  3. Step 3: Cross multiply
    228,711.56x = 315,631.98 × 126,736.76
  4. Step 4: Simplify right side
    228,711.56x = 40,002,174,497.58
  5. Step 5: Solve for x
    x = 40,002,174,497.58/228,711.56
  6. Step 6: Final answer
    x = 174,902.29

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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.