Home / 307,264.44-423,784.56-199,868.78

Finding the Fourth Proportional to 307,264.44, 423,784.56 and 199,868.78

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Solution

The fourth proportional to 307,264.44, 423,784.56 and 199,868.78 is: 275,662.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,264.44 : 423,784.56 = 199,868.78 : x
  2. Step 2: Convert to fraction form
    307,264.44/423,784.56 = 199,868.78/x
  3. Step 3: Cross multiply
    307,264.44x = 423,784.56 × 199,868.78
  4. Step 4: Simplify right side
    307,264.44x = 84,701,302,990.04
  5. Step 5: Solve for x
    x = 84,701,302,990.04/307,264.44
  6. Step 6: Final answer
    x = 275,662.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.