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Finding the Fourth Proportional to 409.66, 565.02 and 262.18

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Solution

The fourth proportional to 409.66, 565.02 and 262.18 is: 361.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    409.66 : 565.02 = 262.18 : x
  2. Step 2: Convert to fraction form
    409.66/565.02 = 262.18/x
  3. Step 3: Cross multiply
    409.66x = 565.02 × 262.18
  4. Step 4: Simplify right side
    409.66x = 148,136.94
  5. Step 5: Solve for x
    x = 148,136.94/409.66
  6. Step 6: Final answer
    x = 361.61

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Why These Related Problems?

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