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Finding the Fourth Proportional to 375,392.27, 518,041.55 and 205,629.23

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Solution

The fourth proportional to 375,392.27, 518,041.55 and 205,629.23 is: 283,768.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,392.27 : 518,041.55 = 205,629.23 : x
  2. Step 2: Convert to fraction form
    375,392.27/518,041.55 = 205,629.23/x
  3. Step 3: Cross multiply
    375,392.27x = 518,041.55 × 205,629.23
  4. Step 4: Simplify right side
    375,392.27x = 106,524,485,034.51
  5. Step 5: Solve for x
    x = 106,524,485,034.51/375,392.27
  6. Step 6: Final answer
    x = 283,768.46

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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.