Home / 217,538.25-300,203.60-126,956.76

Finding the Fourth Proportional to 217,538.25, 300,203.60 and 126,956.76

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Solution

The fourth proportional to 217,538.25, 300,203.60 and 126,956.76 is: 175,200.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,538.25 : 300,203.60 = 126,956.76 : x
  2. Step 2: Convert to fraction form
    217,538.25/300,203.60 = 126,956.76/x
  3. Step 3: Cross multiply
    217,538.25x = 300,203.60 × 126,956.76
  4. Step 4: Simplify right side
    217,538.25x = 38,112,875,761.55
  5. Step 5: Solve for x
    x = 38,112,875,761.55/217,538.25
  6. Step 6: Final answer
    x = 175,200.80

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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.