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Finding the Fourth Proportional to 269,357.49, 371,710.31 and 154,638.86

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Solution

The fourth proportional to 269,357.49, 371,710.31 and 154,638.86 is: 213,399.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,357.49 : 371,710.31 = 154,638.86 : x
  2. Step 2: Convert to fraction form
    269,357.49/371,710.31 = 154,638.86/x
  3. Step 3: Cross multiply
    269,357.49x = 371,710.31 × 154,638.86
  4. Step 4: Simplify right side
    269,357.49x = 57,480,855,956.90
  5. Step 5: Solve for x
    x = 57,480,855,956.90/269,357.49
  6. Step 6: Final answer
    x = 213,399.88

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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.