Home / 380,067.53-524,457.48-257,310.20

Finding the Fourth Proportional to 380,067.53, 524,457.48 and 257,310.20

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Solution

The fourth proportional to 380,067.53, 524,457.48 and 257,310.20 is: 355,063.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,067.53 : 524,457.48 = 257,310.20 : x
  2. Step 2: Convert to fraction form
    380,067.53/524,457.48 = 257,310.20/x
  3. Step 3: Cross multiply
    380,067.53x = 524,457.48 × 257,310.20
  4. Step 4: Simplify right side
    380,067.53x = 134,948,256,448.01
  5. Step 5: Solve for x
    x = 134,948,256,448.01/380,067.53
  6. Step 6: Final answer
    x = 355,063.89

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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.