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Finding the Fourth Proportional to 577.84, 866.73 and 193.09

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Solution

The fourth proportional to 577.84, 866.73 and 193.09 is: 289.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    577.84 : 866.73 = 193.09 : x
  2. Step 2: Convert to fraction form
    577.84/866.73 = 193.09/x
  3. Step 3: Cross multiply
    577.84x = 866.73 × 193.09
  4. Step 4: Simplify right side
    577.84x = 167,356.90
  5. Step 5: Solve for x
    x = 167,356.90/577.84
  6. Step 6: Final answer
    x = 289.62

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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.