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Finding the Fourth Proportional to 160.03, 221.24 and 158.57

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Solution

The fourth proportional to 160.03, 221.24 and 158.57 is: 219.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    160.03 : 221.24 = 158.57 : x
  2. Step 2: Convert to fraction form
    160.03/221.24 = 158.57/x
  3. Step 3: Cross multiply
    160.03x = 221.24 × 158.57
  4. Step 4: Simplify right side
    160.03x = 35,081.63
  5. Step 5: Solve for x
    x = 35,081.63/160.03
  6. Step 6: Final answer
    x = 219.22

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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.