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Finding the Fourth Proportional to 158.23, 236.76 and 117.58

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Solution

The fourth proportional to 158.23, 236.76 and 117.58 is: 175.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    158.23 : 236.76 = 117.58 : x
  2. Step 2: Convert to fraction form
    158.23/236.76 = 117.58/x
  3. Step 3: Cross multiply
    158.23x = 236.76 × 117.58
  4. Step 4: Simplify right side
    158.23x = 27,838.24
  5. Step 5: Solve for x
    x = 27,838.24/158.23
  6. Step 6: Final answer
    x = 175.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.