Home / 217,540.25-300,206.36-126,958.76

Finding the Fourth Proportional to 217,540.25, 300,206.36 and 126,958.76

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Solution

The fourth proportional to 217,540.25, 300,206.36 and 126,958.76 is: 175,203.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,540.25 : 300,206.36 = 126,958.76 : x
  2. Step 2: Convert to fraction form
    217,540.25/300,206.36 = 126,958.76/x
  3. Step 3: Cross multiply
    217,540.25x = 300,206.36 × 126,958.76
  4. Step 4: Simplify right side
    217,540.25x = 38,113,827,209.71
  5. Step 5: Solve for x
    x = 38,113,827,209.71/217,540.25
  6. Step 6: Final answer
    x = 175,203.56

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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.