Home / 1,177.78-1,766.59-356.06

Finding the Fourth Proportional to 1,177.78, 1,766.59 and 356.06

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Solution

The fourth proportional to 1,177.78, 1,766.59 and 356.06 is: 534.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,177.78 : 1,766.59 = 356.06 : x
  2. Step 2: Convert to fraction form
    1,177.78/1,766.59 = 356.06/x
  3. Step 3: Cross multiply
    1,177.78x = 1,766.59 × 356.06
  4. Step 4: Simplify right side
    1,177.78x = 629,012.04
  5. Step 5: Solve for x
    x = 629,012.04/1,177.78
  6. Step 6: Final answer
    x = 534.07

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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.