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Finding the Fourth Proportional to 341.50, 512.75 and 211.13

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Solution

The fourth proportional to 341.50, 512.75 and 211.13 is: 317.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    341.50 : 512.75 = 211.13 : x
  2. Step 2: Convert to fraction form
    341.50/512.75 = 211.13/x
  3. Step 3: Cross multiply
    341.50x = 512.75 × 211.13
  4. Step 4: Simplify right side
    341.50x = 108,256.91
  5. Step 5: Solve for x
    x = 108,256.91/341.50
  6. Step 6: Final answer
    x = 317.00

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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.