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Finding the Fourth Proportional to 431,308.79, 595,208.49 and 250,128.14

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Solution

The fourth proportional to 431,308.79, 595,208.49 and 250,128.14 is: 345,178.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,308.79 : 595,208.49 = 250,128.14 : x
  2. Step 2: Convert to fraction form
    431,308.79/595,208.49 = 250,128.14/x
  3. Step 3: Cross multiply
    431,308.79x = 595,208.49 × 250,128.14
  4. Step 4: Simplify right side
    431,308.79x = 148,878,394,472.92
  5. Step 5: Solve for x
    x = 148,878,394,472.92/431,308.79
  6. Step 6: Final answer
    x = 345,178.21

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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.