Home / 257,859.45-384,904.71-238,865.36

Finding the Fourth Proportional to 257,859.45, 384,904.71 and 238,865.36

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Solution

The fourth proportional to 257,859.45, 384,904.71 and 238,865.36 is: 356,552.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,859.45 : 384,904.71 = 238,865.36 : x
  2. Step 2: Convert to fraction form
    257,859.45/384,904.71 = 238,865.36/x
  3. Step 3: Cross multiply
    257,859.45x = 384,904.71 × 238,865.36
  4. Step 4: Simplify right side
    257,859.45x = 91,940,400,195.32
  5. Step 5: Solve for x
    x = 91,940,400,195.32/257,859.45
  6. Step 6: Final answer
    x = 356,552.38

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.