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Finding the Fourth Proportional to 343.50, 511.34 and 341.66

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Solution

The fourth proportional to 343.50, 511.34 and 341.66 is: 508.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    343.50 : 511.34 = 341.66 : x
  2. Step 2: Convert to fraction form
    343.50/511.34 = 341.66/x
  3. Step 3: Cross multiply
    343.50x = 511.34 × 341.66
  4. Step 4: Simplify right side
    343.50x = 174,704.42
  5. Step 5: Solve for x
    x = 174,704.42/343.50
  6. Step 6: Final answer
    x = 508.60

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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.