Home / 379,834.06-524,216.21-218,720.50

Finding the Fourth Proportional to 379,834.06, 524,216.21 and 218,720.50

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Solution

The fourth proportional to 379,834.06, 524,216.21 and 218,720.50 is: 301,860.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,834.06 : 524,216.21 = 218,720.50 : x
  2. Step 2: Convert to fraction form
    379,834.06/524,216.21 = 218,720.50/x
  3. Step 3: Cross multiply
    379,834.06x = 524,216.21 × 218,720.50
  4. Step 4: Simplify right side
    379,834.06x = 114,656,833,487.97
  5. Step 5: Solve for x
    x = 114,656,833,487.97/379,834.06
  6. Step 6: Final answer
    x = 301,860.33

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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.