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Finding the Fourth Proportional to 788.77, 1,182.88 and 233.31

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Solution

The fourth proportional to 788.77, 1,182.88 and 233.31 is: 349.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    788.77 : 1,182.88 = 233.31 : x
  2. Step 2: Convert to fraction form
    788.77/1,182.88 = 233.31/x
  3. Step 3: Cross multiply
    788.77x = 1,182.88 × 233.31
  4. Step 4: Simplify right side
    788.77x = 275,977.15
  5. Step 5: Solve for x
    x = 275,977.15/788.77
  6. Step 6: Final answer
    x = 349.88

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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.