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Finding the Fourth Proportional to 245.43, 337.84 and 212.36

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Solution

The fourth proportional to 245.43, 337.84 and 212.36 is: 292.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    245.43 : 337.84 = 212.36 : x
  2. Step 2: Convert to fraction form
    245.43/337.84 = 212.36/x
  3. Step 3: Cross multiply
    245.43x = 337.84 × 212.36
  4. Step 4: Simplify right side
    245.43x = 71,741.48
  5. Step 5: Solve for x
    x = 71,741.48/245.43
  6. Step 6: Final answer
    x = 292.31

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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.