Home / 379,917.87-524,315.07-216,578.25

Finding the Fourth Proportional to 379,917.87, 524,315.07 and 216,578.25

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Solution

The fourth proportional to 379,917.87, 524,315.07 and 216,578.25 is: 298,894.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,917.87 : 524,315.07 = 216,578.25 : x
  2. Step 2: Convert to fraction form
    379,917.87/524,315.07 = 216,578.25/x
  3. Step 3: Cross multiply
    379,917.87x = 524,315.07 × 216,578.25
  4. Step 4: Simplify right side
    379,917.87x = 113,555,240,309.23
  5. Step 5: Solve for x
    x = 113,555,240,309.23/379,917.87
  6. Step 6: Final answer
    x = 298,894.18

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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.