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Finding the Fourth Proportional to 158.59, 236.49 and 155.10

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Solution

The fourth proportional to 158.59, 236.49 and 155.10 is: 231.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    158.59 : 236.49 = 155.10 : x
  2. Step 2: Convert to fraction form
    158.59/236.49 = 155.10/x
  3. Step 3: Cross multiply
    158.59x = 236.49 × 155.10
  4. Step 4: Simplify right side
    158.59x = 36,678.57
  5. Step 5: Solve for x
    x = 36,678.57/158.59
  6. Step 6: Final answer
    x = 231.28

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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.