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Finding the Fourth Proportional to 412.56, 568.68 and 342.48

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Solution

The fourth proportional to 412.56, 568.68 and 342.48 is: 472.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    412.56 : 568.68 = 342.48 : x
  2. Step 2: Convert to fraction form
    412.56/568.68 = 342.48/x
  3. Step 3: Cross multiply
    412.56x = 568.68 × 342.48
  4. Step 4: Simplify right side
    412.56x = 194,761.53
  5. Step 5: Solve for x
    x = 194,761.53/412.56
  6. Step 6: Final answer
    x = 472.08

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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.