Home / 380,067.47-524,457.38-257,310.13

Finding the Fourth Proportional to 380,067.47, 524,457.38 and 257,310.13

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Solution

The fourth proportional to 380,067.47, 524,457.38 and 257,310.13 is: 355,063.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,067.47 : 524,457.38 = 257,310.13 : x
  2. Step 2: Convert to fraction form
    380,067.47/524,457.38 = 257,310.13/x
  3. Step 3: Cross multiply
    380,067.47x = 524,457.38 × 257,310.13
  4. Step 4: Simplify right side
    380,067.47x = 134,948,195,959.39
  5. Step 5: Solve for x
    x = 134,948,195,959.39/380,067.47
  6. Step 6: Final answer
    x = 355,063.79

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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.