Home / 303,353.28-455,092.19-90,102.20

Finding the Fourth Proportional to 303,353.28, 455,092.19 and 90,102.20

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Solution

The fourth proportional to 303,353.28, 455,092.19 and 90,102.20 is: 135,171.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,353.28 : 455,092.19 = 90,102.20 : x
  2. Step 2: Convert to fraction form
    303,353.28/455,092.19 = 90,102.20/x
  3. Step 3: Cross multiply
    303,353.28x = 455,092.19 × 90,102.20
  4. Step 4: Simplify right side
    303,353.28x = 41,004,807,541.14
  5. Step 5: Solve for x
    x = 41,004,807,541.14/303,353.28
  6. Step 6: Final answer
    x = 135,171.80

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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.