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Finding the Fourth Proportional to 225,610.43, 311,483.95 and 145,177.73

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Solution

The fourth proportional to 225,610.43, 311,483.95 and 145,177.73 is: 200,436.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,610.43 : 311,483.95 = 145,177.73 : x
  2. Step 2: Convert to fraction form
    225,610.43/311,483.95 = 145,177.73/x
  3. Step 3: Cross multiply
    225,610.43x = 311,483.95 × 145,177.73
  4. Step 4: Simplify right side
    225,610.43x = 45,220,532,040.13
  5. Step 5: Solve for x
    x = 45,220,532,040.13/225,610.43
  6. Step 6: Final answer
    x = 200,436.36

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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.