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Finding the Fourth Proportional to 412.12, 614.70 and 350.56

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Solution

The fourth proportional to 412.12, 614.70 and 350.56 is: 522.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    412.12 : 614.70 = 350.56 : x
  2. Step 2: Convert to fraction form
    412.12/614.70 = 350.56/x
  3. Step 3: Cross multiply
    412.12x = 614.70 × 350.56
  4. Step 4: Simplify right side
    412.12x = 215,489.23
  5. Step 5: Solve for x
    x = 215,489.23/412.12
  6. Step 6: Final answer
    x = 522.88

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.