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Finding the Fourth Proportional to 465.92, 698.96 and 192.20

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Solution

The fourth proportional to 465.92, 698.96 and 192.20 is: 288.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    465.92 : 698.96 = 192.20 : x
  2. Step 2: Convert to fraction form
    465.92/698.96 = 192.20/x
  3. Step 3: Cross multiply
    465.92x = 698.96 × 192.20
  4. Step 4: Simplify right side
    465.92x = 134,340.90
  5. Step 5: Solve for x
    x = 134,340.90/465.92
  6. Step 6: Final answer
    x = 288.34

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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.