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Finding the Fourth Proportional to 160.35, 240.49 and 52.11

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Solution

The fourth proportional to 160.35, 240.49 and 52.11 is: 78.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    160.35 : 240.49 = 52.11 : x
  2. Step 2: Convert to fraction form
    160.35/240.49 = 52.11/x
  3. Step 3: Cross multiply
    160.35x = 240.49 × 52.11
  4. Step 4: Simplify right side
    160.35x = 12,531.93
  5. Step 5: Solve for x
    x = 12,531.93/160.35
  6. Step 6: Final answer
    x = 78.15

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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.