Home / 372,399.63-513,909.14-202,634.43

Finding the Fourth Proportional to 372,399.63, 513,909.14 and 202,634.43

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Solution

The fourth proportional to 372,399.63, 513,909.14 and 202,634.43 is: 279,634.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,399.63 : 513,909.14 = 202,634.43 : x
  2. Step 2: Convert to fraction form
    372,399.63/513,909.14 = 202,634.43/x
  3. Step 3: Cross multiply
    372,399.63x = 513,909.14 × 202,634.43
  4. Step 4: Simplify right side
    372,399.63x = 104,135,684,642.52
  5. Step 5: Solve for x
    x = 104,135,684,642.52/372,399.63
  6. Step 6: Final answer
    x = 279,634.23

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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.