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Finding the Fourth Proportional to 162.60, 244.89 and 148.55

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Solution

The fourth proportional to 162.60, 244.89 and 148.55 is: 223.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    162.60 : 244.89 = 148.55 : x
  2. Step 2: Convert to fraction form
    162.60/244.89 = 148.55/x
  3. Step 3: Cross multiply
    162.60x = 244.89 × 148.55
  4. Step 4: Simplify right side
    162.60x = 36,377.19
  5. Step 5: Solve for x
    x = 36,377.19/162.60
  6. Step 6: Final answer
    x = 223.72

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.