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Finding the Fourth Proportional to 855.00, 1,180.19 and 531.87

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Solution

The fourth proportional to 855.00, 1,180.19 and 531.87 is: 734.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    855.00 : 1,180.19 = 531.87 : x
  2. Step 2: Convert to fraction form
    855.00/1,180.19 = 531.87/x
  3. Step 3: Cross multiply
    855.00x = 1,180.19 × 531.87
  4. Step 4: Simplify right side
    855.00x = 627,705.00
  5. Step 5: Solve for x
    x = 627,705.00/855.00
  6. Step 6: Final answer
    x = 734.16

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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.