Home / 389,549.20-537,578.41-219,799.12

Finding the Fourth Proportional to 389,549.20, 537,578.41 and 219,799.12

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Solution

The fourth proportional to 389,549.20, 537,578.41 and 219,799.12 is: 303,323.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,549.20 : 537,578.41 = 219,799.12 : x
  2. Step 2: Convert to fraction form
    389,549.20/537,578.41 = 219,799.12/x
  3. Step 3: Cross multiply
    389,549.20x = 537,578.41 × 219,799.12
  4. Step 4: Simplify right side
    389,549.20x = 118,159,258,761.11
  5. Step 5: Solve for x
    x = 118,159,258,761.11/389,549.20
  6. Step 6: Final answer
    x = 303,323.07

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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.