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Finding the Fourth Proportional to 409.52, 565.11 and 232.50

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Solution

The fourth proportional to 409.52, 565.11 and 232.50 is: 320.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    409.52 : 565.11 = 232.50 : x
  2. Step 2: Convert to fraction form
    409.52/565.11 = 232.50/x
  3. Step 3: Cross multiply
    409.52x = 565.11 × 232.50
  4. Step 4: Simplify right side
    409.52x = 131,390.19
  5. Step 5: Solve for x
    x = 131,390.19/409.52
  6. Step 6: Final answer
    x = 320.84

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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.