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Finding the Fourth Proportional to 158.13, 235.75 and 156.10

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Solution

The fourth proportional to 158.13, 235.75 and 156.10 is: 232.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    158.13 : 235.75 = 156.10 : x
  2. Step 2: Convert to fraction form
    158.13/235.75 = 156.10/x
  3. Step 3: Cross multiply
    158.13x = 235.75 × 156.10
  4. Step 4: Simplify right side
    158.13x = 36,800.58
  5. Step 5: Solve for x
    x = 36,800.58/158.13
  6. Step 6: Final answer
    x = 232.72

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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.