Home / 380,067.88-524,457.96-257,310.55

Finding the Fourth Proportional to 380,067.88, 524,457.96 and 257,310.55

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Solution

The fourth proportional to 380,067.88, 524,457.96 and 257,310.55 is: 355,064.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,067.88 : 524,457.96 = 257,310.55 : x
  2. Step 2: Convert to fraction form
    380,067.88/524,457.96 = 257,310.55/x
  3. Step 3: Cross multiply
    380,067.88x = 524,457.96 × 257,310.55
  4. Step 4: Simplify right side
    380,067.88x = 134,948,566,139.48
  5. Step 5: Solve for x
    x = 134,948,566,139.48/380,067.88
  6. Step 6: Final answer
    x = 355,064.38

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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.