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Finding the Fourth Proportional to 571.17, 788.04 and 349.95

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Solution

The fourth proportional to 571.17, 788.04 and 349.95 is: 482.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    571.17 : 788.04 = 349.95 : x
  2. Step 2: Convert to fraction form
    571.17/788.04 = 349.95/x
  3. Step 3: Cross multiply
    571.17x = 788.04 × 349.95
  4. Step 4: Simplify right side
    571.17x = 275,774.60
  5. Step 5: Solve for x
    x = 275,774.60/571.17
  6. Step 6: Final answer
    x = 482.82

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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.