Home / 307,259.44-423,777.66-199,863.78

Finding the Fourth Proportional to 307,259.44, 423,777.66 and 199,863.78

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Solution

The fourth proportional to 307,259.44, 423,777.66 and 199,863.78 is: 275,655.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,259.44 : 423,777.66 = 199,863.78 : x
  2. Step 2: Convert to fraction form
    307,259.44/423,777.66 = 199,863.78/x
  3. Step 3: Cross multiply
    307,259.44x = 423,777.66 × 199,863.78
  4. Step 4: Simplify right side
    307,259.44x = 84,697,805,007.15
  5. Step 5: Solve for x
    x = 84,697,805,007.15/307,259.44
  6. Step 6: Final answer
    x = 275,655.66

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1.5x scale

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.