Home / 223,131.28-307,960.72-126,340.74

Finding the Fourth Proportional to 223,131.28, 307,960.72 and 126,340.74

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Solution

The fourth proportional to 223,131.28, 307,960.72 and 126,340.74 is: 174,372.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,131.28 : 307,960.72 = 126,340.74 : x
  2. Step 2: Convert to fraction form
    223,131.28/307,960.72 = 126,340.74/x
  3. Step 3: Cross multiply
    223,131.28x = 307,960.72 × 126,340.74
  4. Step 4: Simplify right side
    223,131.28x = 38,907,985,255.73
  5. Step 5: Solve for x
    x = 38,907,985,255.73/223,131.28
  6. Step 6: Final answer
    x = 174,372.62

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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.