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Finding the Fourth Proportional to 307,360.20, 461,331.90 and 189,262.20

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Solution

The fourth proportional to 307,360.20, 461,331.90 and 189,262.20 is: 284,072.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,360.20 : 461,331.90 = 189,262.20 : x
  2. Step 2: Convert to fraction form
    307,360.20/461,331.90 = 189,262.20/x
  3. Step 3: Cross multiply
    307,360.20x = 461,331.90 × 189,262.20
  4. Step 4: Simplify right side
    307,360.20x = 87,312,690,324.18
  5. Step 5: Solve for x
    x = 87,312,690,324.18/307,360.20
  6. Step 6: Final answer
    x = 284,072.86

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1.5x scale

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.