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Finding the Fourth Proportional to 269,013, 371,339.46 and 211,502.28

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Solution

The fourth proportional to 269,013, 371,339.46 and 211,502.28 is: 291,952.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,013 : 371,339.46 = 211,502.28 : x
  2. Step 2: Convert to fraction form
    269,013/371,339.46 = 211,502.28/x
  3. Step 3: Cross multiply
    269,013x = 371,339.46 × 211,502.28
  4. Step 4: Simplify right side
    269,013x = 78,539,142,443.97
  5. Step 5: Solve for x
    x = 78,539,142,443.97/269,013
  6. Step 6: Final answer
    x = 291,952.96

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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.