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Finding the Fourth Proportional to 246.72, 370.09 and 143.93

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Solution

The fourth proportional to 246.72, 370.09 and 143.93 is: 215.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    246.72 : 370.09 = 143.93 : x
  2. Step 2: Convert to fraction form
    246.72/370.09 = 143.93/x
  3. Step 3: Cross multiply
    246.72x = 370.09 × 143.93
  4. Step 4: Simplify right side
    246.72x = 53,266.48
  5. Step 5: Solve for x
    x = 53,266.48/246.72
  6. Step 6: Final answer
    x = 215.90

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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.