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Finding the Fourth Proportional to 160.56, 240.84 and 146.16

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Solution

The fourth proportional to 160.56, 240.84 and 146.16 is: 219.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    160.56 : 240.84 = 146.16 : x
  2. Step 2: Convert to fraction form
    160.56/240.84 = 146.16/x
  3. Step 3: Cross multiply
    160.56x = 240.84 × 146.16
  4. Step 4: Simplify right side
    160.56x = 35,201.17
  5. Step 5: Solve for x
    x = 35,201.17/160.56
  6. Step 6: Final answer
    x = 219.24

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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.