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Finding the Fourth Proportional to 539.60, 808.94 and 247.00

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Solution

The fourth proportional to 539.60, 808.94 and 247.00 is: 370.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    539.60 : 808.94 = 247.00 : x
  2. Step 2: Convert to fraction form
    539.60/808.94 = 247.00/x
  3. Step 3: Cross multiply
    539.60x = 808.94 × 247.00
  4. Step 4: Simplify right side
    539.60x = 199,806.90
  5. Step 5: Solve for x
    x = 199,806.90/539.60
  6. Step 6: Final answer
    x = 370.29

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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.