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Finding the Fourth Proportional to 160.55, 240.75 and 79.37

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Solution

The fourth proportional to 160.55, 240.75 and 79.37 is: 119.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    160.55 : 240.75 = 79.37 : x
  2. Step 2: Convert to fraction form
    160.55/240.75 = 79.37/x
  3. Step 3: Cross multiply
    160.55x = 240.75 × 79.37
  4. Step 4: Simplify right side
    160.55x = 19,107.12
  5. Step 5: Solve for x
    x = 19,107.12/160.55
  6. Step 6: Final answer
    x = 119.01

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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.