Home / 327,150.79-490,688.16-90,511.90

Finding the Fourth Proportional to 327,150.79, 490,688.16 and 90,511.90

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Solution

The fourth proportional to 327,150.79, 490,688.16 and 90,511.90 is: 135,757.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,150.79 : 490,688.16 = 90,511.90 : x
  2. Step 2: Convert to fraction form
    327,150.79/490,688.16 = 90,511.90/x
  3. Step 3: Cross multiply
    327,150.79x = 490,688.16 × 90,511.90
  4. Step 4: Simplify right side
    327,150.79x = 44,413,117,669.10
  5. Step 5: Solve for x
    x = 44,413,117,669.10/327,150.79
  6. Step 6: Final answer
    x = 135,757.33

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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.