Home / 372,121.14-513,540.69-213,175.86

Finding the Fourth Proportional to 372,121.14, 513,540.69 and 213,175.86

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Solution

The fourth proportional to 372,121.14, 513,540.69 and 213,175.86 is: 294,190.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,121.14 : 513,540.69 = 213,175.86 : x
  2. Step 2: Convert to fraction form
    372,121.14/513,540.69 = 213,175.86/x
  3. Step 3: Cross multiply
    372,121.14x = 513,540.69 × 213,175.86
  4. Step 4: Simplify right side
    372,121.14x = 109,474,478,235.74
  5. Step 5: Solve for x
    x = 109,474,478,235.74/372,121.14
  6. Step 6: Final answer
    x = 294,190.43

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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.