Home / 307,103.47-423,803.64-178,067.23

Finding the Fourth Proportional to 307,103.47, 423,803.64 and 178,067.23

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Solution

The fourth proportional to 307,103.47, 423,803.64 and 178,067.23 is: 245,733.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,103.47 : 423,803.64 = 178,067.23 : x
  2. Step 2: Convert to fraction form
    307,103.47/423,803.64 = 178,067.23/x
  3. Step 3: Cross multiply
    307,103.47x = 423,803.64 × 178,067.23
  4. Step 4: Simplify right side
    307,103.47x = 75,465,540,238.72
  5. Step 5: Solve for x
    x = 75,465,540,238.72/307,103.47
  6. Step 6: Final answer
    x = 245,733.27

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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.