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Finding the Fourth Proportional to 158.96, 237.18 and 143.83

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Solution

The fourth proportional to 158.96, 237.18 and 143.83 is: 214.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    158.96 : 237.18 = 143.83 : x
  2. Step 2: Convert to fraction form
    158.96/237.18 = 143.83/x
  3. Step 3: Cross multiply
    158.96x = 237.18 × 143.83
  4. Step 4: Simplify right side
    158.96x = 34,112.29
  5. Step 5: Solve for x
    x = 34,112.29/158.96
  6. Step 6: Final answer
    x = 214.59

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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.