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Finding the Fourth Proportional to 269,490.20, 404,235.30 and 210,003.80

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Solution

The fourth proportional to 269,490.20, 404,235.30 and 210,003.80 is: 315,005.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,490.20 : 404,235.30 = 210,003.80 : x
  2. Step 2: Convert to fraction form
    269,490.20/404,235.30 = 210,003.80/x
  3. Step 3: Cross multiply
    269,490.20x = 404,235.30 × 210,003.80
  4. Step 4: Simplify right side
    269,490.20x = 84,890,949,094.14
  5. Step 5: Solve for x
    x = 84,890,949,094.14/269,490.20
  6. Step 6: Final answer
    x = 315,005.70

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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.