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Finding the Fourth Proportional to 235,154.24, 352,621.56 and 85,375.52

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Solution

The fourth proportional to 235,154.24, 352,621.56 and 85,375.52 is: 128,023.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,154.24 : 352,621.56 = 85,375.52 : x
  2. Step 2: Convert to fraction form
    235,154.24/352,621.56 = 85,375.52/x
  3. Step 3: Cross multiply
    235,154.24x = 352,621.56 × 85,375.52
  4. Step 4: Simplify right side
    235,154.24x = 30,105,249,048.21
  5. Step 5: Solve for x
    x = 30,105,249,048.21/235,154.24
  6. Step 6: Final answer
    x = 128,023.42

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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.