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Finding the Fourth Proportional to 432.54, 649.62 and 341.82

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Solution

The fourth proportional to 432.54, 649.62 and 341.82 is: 513.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    432.54 : 649.62 = 341.82 : x
  2. Step 2: Convert to fraction form
    432.54/649.62 = 341.82/x
  3. Step 3: Cross multiply
    432.54x = 649.62 × 341.82
  4. Step 4: Simplify right side
    432.54x = 222,053.11
  5. Step 5: Solve for x
    x = 222,053.11/432.54
  6. Step 6: Final answer
    x = 513.37

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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.