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Finding the Fourth Proportional to 412.32, 568.95 and 235.31

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Solution

The fourth proportional to 412.32, 568.95 and 235.31 is: 324.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    412.32 : 568.95 = 235.31 : x
  2. Step 2: Convert to fraction form
    412.32/568.95 = 235.31/x
  3. Step 3: Cross multiply
    412.32x = 568.95 × 235.31
  4. Step 4: Simplify right side
    412.32x = 133,878.20
  5. Step 5: Solve for x
    x = 133,878.20/412.32
  6. Step 6: Final answer
    x = 324.69

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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.