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Finding the Fourth Proportional to 225,407.48, 311,040.78 and 134,745.44

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Solution

The fourth proportional to 225,407.48, 311,040.78 and 134,745.44 is: 185,935.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,407.48 : 311,040.78 = 134,745.44 : x
  2. Step 2: Convert to fraction form
    225,407.48/311,040.78 = 134,745.44/x
  3. Step 3: Cross multiply
    225,407.48x = 311,040.78 × 134,745.44
  4. Step 4: Simplify right side
    225,407.48x = 41,911,326,759.04
  5. Step 5: Solve for x
    x = 41,911,326,759.04/225,407.48
  6. Step 6: Final answer
    x = 185,935.83

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1.5x scale

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.