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Finding the Fourth Proportional to 262.18, 392.46 and 192.62

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Solution

The fourth proportional to 262.18, 392.46 and 192.62 is: 288.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    262.18 : 392.46 = 192.62 : x
  2. Step 2: Convert to fraction form
    262.18/392.46 = 192.62/x
  3. Step 3: Cross multiply
    262.18x = 392.46 × 192.62
  4. Step 4: Simplify right side
    262.18x = 75,595.65
  5. Step 5: Solve for x
    x = 75,595.65/262.18
  6. Step 6: Final answer
    x = 288.33

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.