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Finding the Fourth Proportional to 307,839.20, 460,981.20 and 245,631.20

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Solution

The fourth proportional to 307,839.20, 460,981.20 and 245,631.20 is: 367,826.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,839.20 : 460,981.20 = 245,631.20 : x
  2. Step 2: Convert to fraction form
    307,839.20/460,981.20 = 245,631.20/x
  3. Step 3: Cross multiply
    307,839.20x = 460,981.20 × 245,631.20
  4. Step 4: Simplify right side
    307,839.20x = 113,231,365,333.44
  5. Step 5: Solve for x
    x = 113,231,365,333.44/307,839.20
  6. Step 6: Final answer
    x = 367,826.34

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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.