Home / 371,839.38-513,074.97-210,661.14

Finding the Fourth Proportional to 371,839.38, 513,074.97 and 210,661.14

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Solution

The fourth proportional to 371,839.38, 513,074.97 and 210,661.14 is: 290,676.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,839.38 : 513,074.97 = 210,661.14 : x
  2. Step 2: Convert to fraction form
    371,839.38/513,074.97 = 210,661.14/x
  3. Step 3: Cross multiply
    371,839.38x = 513,074.97 × 210,661.14
  4. Step 4: Simplify right side
    371,839.38x = 108,084,958,085.67
  5. Step 5: Solve for x
    x = 108,084,958,085.67/371,839.38
  6. Step 6: Final answer
    x = 290,676.47

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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.