Home / 389,423.26-537,403.82-219,657.39

Finding the Fourth Proportional to 389,423.26, 537,403.82 and 219,657.39

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Solution

The fourth proportional to 389,423.26, 537,403.82 and 219,657.39 is: 303,127.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,423.26 : 537,403.82 = 219,657.39 : x
  2. Step 2: Convert to fraction form
    389,423.26/537,403.82 = 219,657.39/x
  3. Step 3: Cross multiply
    389,423.26x = 537,403.82 × 219,657.39
  4. Step 4: Simplify right side
    389,423.26x = 118,044,717,363.68
  5. Step 5: Solve for x
    x = 118,044,717,363.68/389,423.26
  6. Step 6: Final answer
    x = 303,127.03

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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.