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Finding the Fourth Proportional to 226,039.74, 311,947.11 and 125,439.90

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Solution

The fourth proportional to 226,039.74, 311,947.11 and 125,439.90 is: 173,113.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,039.74 : 311,947.11 = 125,439.90 : x
  2. Step 2: Convert to fraction form
    226,039.74/311,947.11 = 125,439.90/x
  3. Step 3: Cross multiply
    226,039.74x = 311,947.11 × 125,439.90
  4. Step 4: Simplify right side
    226,039.74x = 39,130,614,283.69
  5. Step 5: Solve for x
    x = 39,130,614,283.69/226,039.74
  6. Step 6: Final answer
    x = 173,113.87

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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.