Home / 307,126.74-423,824.64-178,067.58

Finding the Fourth Proportional to 307,126.74, 423,824.64 and 178,067.58

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Solution

The fourth proportional to 307,126.74, 423,824.64 and 178,067.58 is: 245,727.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,126.74 : 423,824.64 = 178,067.58 : x
  2. Step 2: Convert to fraction form
    307,126.74/423,824.64 = 178,067.58/x
  3. Step 3: Cross multiply
    307,126.74x = 423,824.64 × 178,067.58
  4. Step 4: Simplify right side
    307,126.74x = 75,469,427,989.17
  5. Step 5: Solve for x
    x = 75,469,427,989.17/307,126.74
  6. Step 6: Final answer
    x = 245,727.31

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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.