Home / 389,574.20-537,645.20-219,841.13

Finding the Fourth Proportional to 389,574.20, 537,645.20 and 219,841.13

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Solution

The fourth proportional to 389,574.20, 537,645.20 and 219,841.13 is: 303,399.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,574.20 : 537,645.20 = 219,841.13 : x
  2. Step 2: Convert to fraction form
    389,574.20/537,645.20 = 219,841.13/x
  3. Step 3: Cross multiply
    389,574.20x = 537,645.20 × 219,841.13
  4. Step 4: Simplify right side
    389,574.20x = 118,196,524,519.64
  5. Step 5: Solve for x
    x = 118,196,524,519.64/389,574.20
  6. Step 6: Final answer
    x = 303,399.27

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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.