Home / 372,115.56-513,503.82-210,981.42

Finding the Fourth Proportional to 372,115.56, 513,503.82 and 210,981.42

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Solution

The fourth proportional to 372,115.56, 513,503.82 and 210,981.42 is: 291,145.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,115.56 : 513,503.82 = 210,981.42 : x
  2. Step 2: Convert to fraction form
    372,115.56/513,503.82 = 210,981.42/x
  3. Step 3: Cross multiply
    372,115.56x = 513,503.82 × 210,981.42
  4. Step 4: Simplify right side
    372,115.56x = 108,339,765,119.02
  5. Step 5: Solve for x
    x = 108,339,765,119.02/372,115.56
  6. Step 6: Final answer
    x = 291,145.48

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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.