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Finding the Fourth Proportional to 274.07, 410.34 and 171.10

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Solution

The fourth proportional to 274.07, 410.34 and 171.10 is: 256.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    274.07 : 410.34 = 171.10 : x
  2. Step 2: Convert to fraction form
    274.07/410.34 = 171.10/x
  3. Step 3: Cross multiply
    274.07x = 410.34 × 171.10
  4. Step 4: Simplify right side
    274.07x = 70,209.17
  5. Step 5: Solve for x
    x = 70,209.17/274.07
  6. Step 6: Final answer
    x = 256.17

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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.