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Finding the Fourth Proportional to 307,837.20, 460,978.20 and 245,629.20

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Solution

The fourth proportional to 307,837.20, 460,978.20 and 245,629.20 is: 367,823.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,837.20 : 460,978.20 = 245,629.20 : x
  2. Step 2: Convert to fraction form
    307,837.20/460,978.20 = 245,629.20/x
  3. Step 3: Cross multiply
    307,837.20x = 460,978.20 × 245,629.20
  4. Step 4: Simplify right side
    307,837.20x = 113,229,706,483.44
  5. Step 5: Solve for x
    x = 113,229,706,483.44/307,837.20
  6. Step 6: Final answer
    x = 367,823.34

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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.