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Finding the Fourth Proportional to 246.95, 370.36 and 84.59

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Solution

The fourth proportional to 246.95, 370.36 and 84.59 is: 126.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    246.95 : 370.36 = 84.59 : x
  2. Step 2: Convert to fraction form
    246.95/370.36 = 84.59/x
  3. Step 3: Cross multiply
    246.95x = 370.36 × 84.59
  4. Step 4: Simplify right side
    246.95x = 31,328.75
  5. Step 5: Solve for x
    x = 31,328.75/246.95
  6. Step 6: Final answer
    x = 126.86

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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.