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Finding the Fourth Proportional to 235,689.44, 353,324.56 and 85,901.52

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Solution

The fourth proportional to 235,689.44, 353,324.56 and 85,901.52 is: 128,775.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,689.44 : 353,324.56 = 85,901.52 : x
  2. Step 2: Convert to fraction form
    235,689.44/353,324.56 = 85,901.52/x
  3. Step 3: Cross multiply
    235,689.44x = 353,324.56 × 85,901.52
  4. Step 4: Simplify right side
    235,689.44x = 30,351,116,757.33
  5. Step 5: Solve for x
    x = 30,351,116,757.33/235,689.44
  6. Step 6: Final answer
    x = 128,775.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.