Home / 389,331.36-537,292.44-219,571.56

Finding the Fourth Proportional to 389,331.36, 537,292.44 and 219,571.56

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Solution

The fourth proportional to 389,331.36, 537,292.44 and 219,571.56 is: 303,017.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,331.36 : 537,292.44 = 219,571.56 : x
  2. Step 2: Convert to fraction form
    389,331.36/537,292.44 = 219,571.56/x
  3. Step 3: Cross multiply
    389,331.36x = 537,292.44 × 219,571.56
  4. Step 4: Simplify right side
    389,331.36x = 117,974,139,227.01
  5. Step 5: Solve for x
    x = 117,974,139,227.01/389,331.36
  6. Step 6: Final answer
    x = 303,017.30

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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.