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Finding the Fourth Proportional to 570.98, 788.00 and 349.88

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Solution

The fourth proportional to 570.98, 788.00 and 349.88 is: 482.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    570.98 : 788.00 = 349.88 : x
  2. Step 2: Convert to fraction form
    570.98/788.00 = 349.88/x
  3. Step 3: Cross multiply
    570.98x = 788.00 × 349.88
  4. Step 4: Simplify right side
    570.98x = 275,699.75
  5. Step 5: Solve for x
    x = 275,699.75/570.98
  6. Step 6: Final answer
    x = 482.85

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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.