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Finding the Fourth Proportional to 160.56, 240.82 and 52.31

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Solution

The fourth proportional to 160.56, 240.82 and 52.31 is: 78.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    160.56 : 240.82 = 52.31 : x
  2. Step 2: Convert to fraction form
    160.56/240.82 = 52.31/x
  3. Step 3: Cross multiply
    160.56x = 240.82 × 52.31
  4. Step 4: Simplify right side
    160.56x = 12,597.77
  5. Step 5: Solve for x
    x = 12,597.77/160.56
  6. Step 6: Final answer
    x = 78.46

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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.