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Finding the Fourth Proportional to 1,255.56, 1,883.01 and 475.53

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Solution

The fourth proportional to 1,255.56, 1,883.01 and 475.53 is: 713.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,255.56 : 1,883.01 = 475.53 : x
  2. Step 2: Convert to fraction form
    1,255.56/1,883.01 = 475.53/x
  3. Step 3: Cross multiply
    1,255.56x = 1,883.01 × 475.53
  4. Step 4: Simplify right side
    1,255.56x = 895,427.75
  5. Step 5: Solve for x
    x = 895,427.75/1,255.56
  6. Step 6: Final answer
    x = 713.17

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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.