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Finding the Fourth Proportional to 235,576.92, 325,092.80 and 128,147.88

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Solution

The fourth proportional to 235,576.92, 325,092.80 and 128,147.88 is: 176,842.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,576.92 : 325,092.80 = 128,147.88 : x
  2. Step 2: Convert to fraction form
    235,576.92/325,092.80 = 128,147.88/x
  3. Step 3: Cross multiply
    235,576.92x = 325,092.80 × 128,147.88
  4. Step 4: Simplify right side
    235,576.92x = 41,659,953,123.26
  5. Step 5: Solve for x
    x = 41,659,953,123.26/235,576.92
  6. Step 6: Final answer
    x = 176,842.25

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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.