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Finding the Fourth Proportional to 345.27, 517.54 and 114.10

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Solution

The fourth proportional to 345.27, 517.54 and 114.10 is: 171.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    345.27 : 517.54 = 114.10 : x
  2. Step 2: Convert to fraction form
    345.27/517.54 = 114.10/x
  3. Step 3: Cross multiply
    345.27x = 517.54 × 114.10
  4. Step 4: Simplify right side
    345.27x = 59,051.31
  5. Step 5: Solve for x
    x = 59,051.31/345.27
  6. Step 6: Final answer
    x = 171.03

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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.