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Finding the Fourth Proportional to 269,977.80, 404,966.70 and 217,489.80

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Solution

The fourth proportional to 269,977.80, 404,966.70 and 217,489.80 is: 326,234.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,977.80 : 404,966.70 = 217,489.80 : x
  2. Step 2: Convert to fraction form
    269,977.80/404,966.70 = 217,489.80/x
  3. Step 3: Cross multiply
    269,977.80x = 404,966.70 × 217,489.80
  4. Step 4: Simplify right side
    269,977.80x = 88,076,126,589.66
  5. Step 5: Solve for x
    x = 88,076,126,589.66/269,977.80
  6. Step 6: Final answer
    x = 326,234.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.