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Finding the Fourth Proportional to 273,218.20, 409,389.90 and 173,199.40

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Solution

The fourth proportional to 273,218.20, 409,389.90 and 173,199.40 is: 259,521.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,218.20 : 409,389.90 = 173,199.40 : x
  2. Step 2: Convert to fraction form
    273,218.20/409,389.90 = 173,199.40/x
  3. Step 3: Cross multiply
    273,218.20x = 409,389.90 × 173,199.40
  4. Step 4: Simplify right side
    273,218.20x = 70,906,085,046.06
  5. Step 5: Solve for x
    x = 70,906,085,046.06/273,218.20
  6. Step 6: Final answer
    x = 259,521.82

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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.