Home / 307,255.13-423,771.71-199,859.46

Finding the Fourth Proportional to 307,255.13, 423,771.71 and 199,859.46

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Solution

The fourth proportional to 307,255.13, 423,771.71 and 199,859.46 is: 275,649.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,255.13 : 423,771.71 = 199,859.46 : x
  2. Step 2: Convert to fraction form
    307,255.13/423,771.71 = 199,859.46/x
  3. Step 3: Cross multiply
    307,255.13x = 423,771.71 × 199,859.46
  4. Step 4: Simplify right side
    307,255.13x = 84,694,785,123.88
  5. Step 5: Solve for x
    x = 84,694,785,123.88/307,255.13
  6. Step 6: Final answer
    x = 275,649.70

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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.