Home / 312,657.20-468,985.98-219,578.48

Finding the Fourth Proportional to 312,657.20, 468,985.98 and 219,578.48

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Solution

The fourth proportional to 312,657.20, 468,985.98 and 219,578.48 is: 329,367.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,657.20 : 468,985.98 = 219,578.48 : x
  2. Step 2: Convert to fraction form
    312,657.20/468,985.98 = 219,578.48/x
  3. Step 3: Cross multiply
    312,657.20x = 468,985.98 × 219,578.48
  4. Step 4: Simplify right side
    312,657.20x = 102,979,228,629.71
  5. Step 5: Solve for x
    x = 102,979,228,629.71/312,657.20
  6. Step 6: Final answer
    x = 329,367.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.