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Finding the Fourth Proportional to 114.37, 170.71 and 100.70

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Solution

The fourth proportional to 114.37, 170.71 and 100.70 is: 150.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    114.37 : 170.71 = 100.70 : x
  2. Step 2: Convert to fraction form
    114.37/170.71 = 100.70/x
  3. Step 3: Cross multiply
    114.37x = 170.71 × 100.70
  4. Step 4: Simplify right side
    114.37x = 17,189.64
  5. Step 5: Solve for x
    x = 17,189.64/114.37
  6. Step 6: Final answer
    x = 150.31

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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.