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Finding the Fourth Proportional to 114.24, 170.48 and 102.09

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Solution

The fourth proportional to 114.24, 170.48 and 102.09 is: 152.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    114.24 : 170.48 = 102.09 : x
  2. Step 2: Convert to fraction form
    114.24/170.48 = 102.09/x
  3. Step 3: Cross multiply
    114.24x = 170.48 × 102.09
  4. Step 4: Simplify right side
    114.24x = 17,404.30
  5. Step 5: Solve for x
    x = 17,404.30/114.24
  6. Step 6: Final answer
    x = 152.35

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.