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Finding the Fourth Proportional to 159.51, 219.90 and 110.49

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Solution

The fourth proportional to 159.51, 219.90 and 110.49 is: 152.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    159.51 : 219.90 = 110.49 : x
  2. Step 2: Convert to fraction form
    159.51/219.90 = 110.49/x
  3. Step 3: Cross multiply
    159.51x = 219.90 × 110.49
  4. Step 4: Simplify right side
    159.51x = 24,296.75
  5. Step 5: Solve for x
    x = 24,296.75/159.51
  6. Step 6: Final answer
    x = 152.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.