Home / 389,265.12-537,184.98-219,498.03

Finding the Fourth Proportional to 389,265.12, 537,184.98 and 219,498.03

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Solution

The fourth proportional to 389,265.12, 537,184.98 and 219,498.03 is: 302,906.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,265.12 : 537,184.98 = 219,498.03 : x
  2. Step 2: Convert to fraction form
    389,265.12/537,184.98 = 219,498.03/x
  3. Step 3: Cross multiply
    389,265.12x = 537,184.98 × 219,498.03
  4. Step 4: Simplify right side
    389,265.12x = 117,911,044,855.59
  5. Step 5: Solve for x
    x = 117,911,044,855.59/389,265.12
  6. Step 6: Final answer
    x = 302,906.78

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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.