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Finding the Fourth Proportional to 409.83, 565.53 and 232.81

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Solution

The fourth proportional to 409.83, 565.53 and 232.81 is: 321.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    409.83 : 565.53 = 232.81 : x
  2. Step 2: Convert to fraction form
    409.83/565.53 = 232.81/x
  3. Step 3: Cross multiply
    409.83x = 565.53 × 232.81
  4. Step 4: Simplify right side
    409.83x = 131,661.04
  5. Step 5: Solve for x
    x = 131,661.04/409.83
  6. Step 6: Final answer
    x = 321.26

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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.