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Finding the Fourth Proportional to 307,850.40, 461,948.40 and 130,327.20

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Solution

The fourth proportional to 307,850.40, 461,948.40 and 130,327.20 is: 195,563.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,850.40 : 461,948.40 = 130,327.20 : x
  2. Step 2: Convert to fraction form
    307,850.40/461,948.40 = 130,327.20/x
  3. Step 3: Cross multiply
    307,850.40x = 461,948.40 × 130,327.20
  4. Step 4: Simplify right side
    307,850.40x = 60,204,441,516.48
  5. Step 5: Solve for x
    x = 60,204,441,516.48/307,850.40
  6. Step 6: Final answer
    x = 195,563.95

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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.