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Finding the Fourth Proportional to 375,653.70, 518,399.19 and 205,887.42

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Solution

The fourth proportional to 375,653.70, 518,399.19 and 205,887.42 is: 284,123.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,653.70 : 518,399.19 = 205,887.42 : x
  2. Step 2: Convert to fraction form
    375,653.70/518,399.19 = 205,887.42/x
  3. Step 3: Cross multiply
    375,653.70x = 518,399.19 × 205,887.42
  4. Step 4: Simplify right side
    375,653.70x = 106,731,871,759.19
  5. Step 5: Solve for x
    x = 106,731,871,759.19/375,653.70
  6. Step 6: Final answer
    x = 284,123.04

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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.