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Finding the Fourth Proportional to 852.41, 1,278.97 and 332.39

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Solution

The fourth proportional to 852.41, 1,278.97 and 332.39 is: 498.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    852.41 : 1,278.97 = 332.39 : x
  2. Step 2: Convert to fraction form
    852.41/1,278.97 = 332.39/x
  3. Step 3: Cross multiply
    852.41x = 1,278.97 × 332.39
  4. Step 4: Simplify right side
    852.41x = 425,119.20
  5. Step 5: Solve for x
    x = 425,119.20/852.41
  6. Step 6: Final answer
    x = 498.72

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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.