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Finding the Fourth Proportional to 581.09, 868.44 and 547.37

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Solution

The fourth proportional to 581.09, 868.44 and 547.37 is: 818.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    581.09 : 868.44 = 547.37 : x
  2. Step 2: Convert to fraction form
    581.09/868.44 = 547.37/x
  3. Step 3: Cross multiply
    581.09x = 868.44 × 547.37
  4. Step 4: Simplify right side
    581.09x = 475,360.78
  5. Step 5: Solve for x
    x = 475,360.78/581.09
  6. Step 6: Final answer
    x = 818.05

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.