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Finding the Fourth Proportional to 341.96, 512.54 and 146.91

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Solution

The fourth proportional to 341.96, 512.54 and 146.91 is: 220.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    341.96 : 512.54 = 146.91 : x
  2. Step 2: Convert to fraction form
    341.96/512.54 = 146.91/x
  3. Step 3: Cross multiply
    341.96x = 512.54 × 146.91
  4. Step 4: Simplify right side
    341.96x = 75,297.25
  5. Step 5: Solve for x
    x = 75,297.25/341.96
  6. Step 6: Final answer
    x = 220.19

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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.