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Finding the Fourth Proportional to 341.30, 511.98 and 97.85

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Solution

The fourth proportional to 341.30, 511.98 and 97.85 is: 146.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    341.30 : 511.98 = 97.85 : x
  2. Step 2: Convert to fraction form
    341.30/511.98 = 97.85/x
  3. Step 3: Cross multiply
    341.30x = 511.98 × 97.85
  4. Step 4: Simplify right side
    341.30x = 50,098.52
  5. Step 5: Solve for x
    x = 50,098.52/341.30
  6. Step 6: Final answer
    x = 146.79

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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.