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Finding the Fourth Proportional to 162.78, 224.62 and 104.50

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Solution

The fourth proportional to 162.78, 224.62 and 104.50 is: 144.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    162.78 : 224.62 = 104.50 : x
  2. Step 2: Convert to fraction form
    162.78/224.62 = 104.50/x
  3. Step 3: Cross multiply
    162.78x = 224.62 × 104.50
  4. Step 4: Simplify right side
    162.78x = 23,472.79
  5. Step 5: Solve for x
    x = 23,472.79/162.78
  6. Step 6: Final answer
    x = 144.20

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.