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Finding the Fourth Proportional to 245.08, 337.62 and 212.68

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Solution

The fourth proportional to 245.08, 337.62 and 212.68 is: 292.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    245.08 : 337.62 = 212.68 : x
  2. Step 2: Convert to fraction form
    245.08/337.62 = 212.68/x
  3. Step 3: Cross multiply
    245.08x = 337.62 × 212.68
  4. Step 4: Simplify right side
    245.08x = 71,805.02
  5. Step 5: Solve for x
    x = 71,805.02/245.08
  6. Step 6: Final answer
    x = 292.99

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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.