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Finding the Fourth Proportional to 161.50, 240.80 and 152.32

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Solution

The fourth proportional to 161.50, 240.80 and 152.32 is: 227.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    161.50 : 240.80 = 152.32 : x
  2. Step 2: Convert to fraction form
    161.50/240.80 = 152.32/x
  3. Step 3: Cross multiply
    161.50x = 240.80 × 152.32
  4. Step 4: Simplify right side
    161.50x = 36,678.66
  5. Step 5: Solve for x
    x = 36,678.66/161.50
  6. Step 6: Final answer
    x = 227.11

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.