Home / 279,924.03-386,185.47-172,307.22

Finding the Fourth Proportional to 279,924.03, 386,185.47 and 172,307.22

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Solution

The fourth proportional to 279,924.03, 386,185.47 and 172,307.22 is: 237,716.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,924.03 : 386,185.47 = 172,307.22 : x
  2. Step 2: Convert to fraction form
    279,924.03/386,185.47 = 172,307.22/x
  3. Step 3: Cross multiply
    279,924.03x = 386,185.47 × 172,307.22
  4. Step 4: Simplify right side
    279,924.03x = 66,542,544,740.09
  5. Step 5: Solve for x
    x = 66,542,544,740.09/279,924.03
  6. Step 6: Final answer
    x = 237,716.44

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1.5x scale

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.