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Finding the Fourth Proportional to 292.95, 404.30 and 219.14

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Solution

The fourth proportional to 292.95, 404.30 and 219.14 is: 302.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    292.95 : 404.30 = 219.14 : x
  2. Step 2: Convert to fraction form
    292.95/404.30 = 219.14/x
  3. Step 3: Cross multiply
    292.95x = 404.30 × 219.14
  4. Step 4: Simplify right side
    292.95x = 88,595.18
  5. Step 5: Solve for x
    x = 88,595.18/292.95
  6. Step 6: Final answer
    x = 302.43

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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.