Home / 372,039.35-513,507.31-228,716.36

Finding the Fourth Proportional to 372,039.35, 513,507.31 and 228,716.36

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Solution

The fourth proportional to 372,039.35, 513,507.31 and 228,716.36 is: 315,685.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,039.35 : 513,507.31 = 228,716.36 : x
  2. Step 2: Convert to fraction form
    372,039.35/513,507.31 = 228,716.36/x
  3. Step 3: Cross multiply
    372,039.35x = 513,507.31 × 228,716.36
  4. Step 4: Simplify right side
    372,039.35x = 117,447,522,776.59
  5. Step 5: Solve for x
    x = 117,447,522,776.59/372,039.35
  6. Step 6: Final answer
    x = 315,685.75

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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.