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Finding the Fourth Proportional to 571.03, 788.13 and 349.93

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Solution

The fourth proportional to 571.03, 788.13 and 349.93 is: 482.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    571.03 : 788.13 = 349.93 : x
  2. Step 2: Convert to fraction form
    571.03/788.13 = 349.93/x
  3. Step 3: Cross multiply
    571.03x = 788.13 × 349.93
  4. Step 4: Simplify right side
    571.03x = 275,790.33
  5. Step 5: Solve for x
    x = 275,790.33/571.03
  6. Step 6: Final answer
    x = 482.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.