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Finding the Fourth Proportional to 243.68, 365.70 and 162.68

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Solution

The fourth proportional to 243.68, 365.70 and 162.68 is: 244.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    243.68 : 365.70 = 162.68 : x
  2. Step 2: Convert to fraction form
    243.68/365.70 = 162.68/x
  3. Step 3: Cross multiply
    243.68x = 365.70 × 162.68
  4. Step 4: Simplify right side
    243.68x = 59,492.08
  5. Step 5: Solve for x
    x = 59,492.08/243.68
  6. Step 6: Final answer
    x = 244.14

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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.