Home / 379,821.71-524,095.73-218,645.61

Finding the Fourth Proportional to 379,821.71, 524,095.73 and 218,645.61

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Solution

The fourth proportional to 379,821.71, 524,095.73 and 218,645.61 is: 301,697.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,821.71 : 524,095.73 = 218,645.61 : x
  2. Step 2: Convert to fraction form
    379,821.71/524,095.73 = 218,645.61/x
  3. Step 3: Cross multiply
    379,821.71x = 524,095.73 × 218,645.61
  4. Step 4: Simplify right side
    379,821.71x = 114,591,229,491.02
  5. Step 5: Solve for x
    x = 114,591,229,491.02/379,821.71
  6. Step 6: Final answer
    x = 301,697.42

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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.