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Finding the Fourth Proportional to 154.08, 232.26 and 146.16

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Solution

The fourth proportional to 154.08, 232.26 and 146.16 is: 220.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    154.08 : 232.26 = 146.16 : x
  2. Step 2: Convert to fraction form
    154.08/232.26 = 146.16/x
  3. Step 3: Cross multiply
    154.08x = 232.26 × 146.16
  4. Step 4: Simplify right side
    154.08x = 33,947.12
  5. Step 5: Solve for x
    x = 33,947.12/154.08
  6. Step 6: Final answer
    x = 220.32

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.