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Finding the Fourth Proportional to 343.47, 512.28 and 336.18

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Solution

The fourth proportional to 343.47, 512.28 and 336.18 is: 501.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    343.47 : 512.28 = 336.18 : x
  2. Step 2: Convert to fraction form
    343.47/512.28 = 336.18/x
  3. Step 3: Cross multiply
    343.47x = 512.28 × 336.18
  4. Step 4: Simplify right side
    343.47x = 172,218.29
  5. Step 5: Solve for x
    x = 172,218.29/343.47
  6. Step 6: Final answer
    x = 501.41

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.