Home / 372,118.14-513,536.55-213,172.86

Finding the Fourth Proportional to 372,118.14, 513,536.55 and 213,172.86

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Solution

The fourth proportional to 372,118.14, 513,536.55 and 213,172.86 is: 294,186.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,118.14 : 513,536.55 = 213,172.86 : x
  2. Step 2: Convert to fraction form
    372,118.14/513,536.55 = 213,172.86/x
  3. Step 3: Cross multiply
    372,118.14x = 513,536.55 × 213,172.86
  4. Step 4: Simplify right side
    372,118.14x = 109,472,055,078.03
  5. Step 5: Solve for x
    x = 109,472,055,078.03/372,118.14
  6. Step 6: Final answer
    x = 294,186.29

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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.