Home / 340,721.64-510,517.48-207,198

Finding the Fourth Proportional to 340,721.64, 510,517.48 and 207,198

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Solution

The fourth proportional to 340,721.64, 510,517.48 and 207,198 is: 310,453.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,721.64 : 510,517.48 = 207,198 : x
  2. Step 2: Convert to fraction form
    340,721.64/510,517.48 = 207,198/x
  3. Step 3: Cross multiply
    340,721.64x = 510,517.48 × 207,198
  4. Step 4: Simplify right side
    340,721.64x = 105,778,200,821.04
  5. Step 5: Solve for x
    x = 105,778,200,821.04/340,721.64
  6. Step 6: Final answer
    x = 310,453.43

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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.