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Finding the Fourth Proportional to 571.79, 857.69 and 160.94

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Solution

The fourth proportional to 571.79, 857.69 and 160.94 is: 241.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    571.79 : 857.69 = 160.94 : x
  2. Step 2: Convert to fraction form
    571.79/857.69 = 160.94/x
  3. Step 3: Cross multiply
    571.79x = 857.69 × 160.94
  4. Step 4: Simplify right side
    571.79x = 138,031.54
  5. Step 5: Solve for x
    x = 138,031.54/571.79
  6. Step 6: Final answer
    x = 241.40

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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.