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Finding the Fourth Proportional to 246.80, 370.28 and 144.20

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Solution

The fourth proportional to 246.80, 370.28 and 144.20 is: 216.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    246.80 : 370.28 = 144.20 : x
  2. Step 2: Convert to fraction form
    246.80/370.28 = 144.20/x
  3. Step 3: Cross multiply
    246.80x = 370.28 × 144.20
  4. Step 4: Simplify right side
    246.80x = 53,394.38
  5. Step 5: Solve for x
    x = 53,394.38/246.80
  6. Step 6: Final answer
    x = 216.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.