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Finding the Fourth Proportional to 341.34, 511.65 and 211.41

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Solution

The fourth proportional to 341.34, 511.65 and 211.41 is: 316.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    341.34 : 511.65 = 211.41 : x
  2. Step 2: Convert to fraction form
    341.34/511.65 = 211.41/x
  3. Step 3: Cross multiply
    341.34x = 511.65 × 211.41
  4. Step 4: Simplify right side
    341.34x = 108,167.93
  5. Step 5: Solve for x
    x = 108,167.93/341.34
  6. Step 6: Final answer
    x = 316.89

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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.