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Finding the Fourth Proportional to 375,439.42, 518,108.22 and 205,673.56

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Solution

The fourth proportional to 375,439.42, 518,108.22 and 205,673.56 is: 283,830.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,439.42 : 518,108.22 = 205,673.56 : x
  2. Step 2: Convert to fraction form
    375,439.42/518,108.22 = 205,673.56/x
  3. Step 3: Cross multiply
    375,439.42x = 518,108.22 × 205,673.56
  4. Step 4: Simplify right side
    375,439.42x = 106,561,162,072.66
  5. Step 5: Solve for x
    x = 106,561,162,072.66/375,439.42
  6. Step 6: Final answer
    x = 283,830.51

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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.