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Finding the Fourth Proportional to 158.18, 235.46 and 155.88

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Solution

The fourth proportional to 158.18, 235.46 and 155.88 is: 232.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    158.18 : 235.46 = 155.88 : x
  2. Step 2: Convert to fraction form
    158.18/235.46 = 155.88/x
  3. Step 3: Cross multiply
    158.18x = 235.46 × 155.88
  4. Step 4: Simplify right side
    158.18x = 36,703.50
  5. Step 5: Solve for x
    x = 36,703.50/158.18
  6. Step 6: Final answer
    x = 232.04

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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.