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Finding the Fourth Proportional to 577.37, 866.21 and 166.50

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Solution

The fourth proportional to 577.37, 866.21 and 166.50 is: 249.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    577.37 : 866.21 = 166.50 : x
  2. Step 2: Convert to fraction form
    577.37/866.21 = 166.50/x
  3. Step 3: Cross multiply
    577.37x = 866.21 × 166.50
  4. Step 4: Simplify right side
    577.37x = 144,223.13
  5. Step 5: Solve for x
    x = 144,223.13/577.37
  6. Step 6: Final answer
    x = 249.79

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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.