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Finding the Fourth Proportional to 539.93, 810.07 and 210.97

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Solution

The fourth proportional to 539.93, 810.07 and 210.97 is: 316.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    539.93 : 810.07 = 210.97 : x
  2. Step 2: Convert to fraction form
    539.93/810.07 = 210.97/x
  3. Step 3: Cross multiply
    539.93x = 810.07 × 210.97
  4. Step 4: Simplify right side
    539.93x = 170,900.95
  5. Step 5: Solve for x
    x = 170,900.95/539.93
  6. Step 6: Final answer
    x = 316.52

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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.