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Finding the Fourth Proportional to 269,339.31, 371,706.30 and 148,480.70

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Solution

The fourth proportional to 269,339.31, 371,706.30 and 148,480.70 is: 204,913.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,339.31 : 371,706.30 = 148,480.70 : x
  2. Step 2: Convert to fraction form
    269,339.31/371,706.30 = 148,480.70/x
  3. Step 3: Cross multiply
    269,339.31x = 371,706.30 × 148,480.70
  4. Step 4: Simplify right side
    269,339.31x = 55,191,209,759.88
  5. Step 5: Solve for x
    x = 55,191,209,759.88/269,339.31
  6. Step 6: Final answer
    x = 204,913.31

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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.