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Finding the Fourth Proportional to 158.51, 236.56 and 148.07

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Solution

The fourth proportional to 158.51, 236.56 and 148.07 is: 220.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    158.51 : 236.56 = 148.07 : x
  2. Step 2: Convert to fraction form
    158.51/236.56 = 148.07/x
  3. Step 3: Cross multiply
    158.51x = 236.56 × 148.07
  4. Step 4: Simplify right side
    158.51x = 35,026.61
  5. Step 5: Solve for x
    x = 35,026.61/158.51
  6. Step 6: Final answer
    x = 220.97

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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.