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Finding the Fourth Proportional to 160.55, 240.64 and 102.63

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Solution

The fourth proportional to 160.55, 240.64 and 102.63 is: 153.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    160.55 : 240.64 = 102.63 : x
  2. Step 2: Convert to fraction form
    160.55/240.64 = 102.63/x
  3. Step 3: Cross multiply
    160.55x = 240.64 × 102.63
  4. Step 4: Simplify right side
    160.55x = 24,696.88
  5. Step 5: Solve for x
    x = 24,696.88/160.55
  6. Step 6: Final answer
    x = 153.83

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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.