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Finding the Fourth Proportional to 270,843.10, 373,758.86 and 149,981.78

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Solution

The fourth proportional to 270,843.10, 373,758.86 and 149,981.78 is: 206,972.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,843.10 : 373,758.86 = 149,981.78 : x
  2. Step 2: Convert to fraction form
    270,843.10/373,758.86 = 149,981.78/x
  3. Step 3: Cross multiply
    270,843.10x = 373,758.86 × 149,981.78
  4. Step 4: Simplify right side
    270,843.10x = 56,057,018,363.66
  5. Step 5: Solve for x
    x = 56,057,018,363.66/270,843.10
  6. Step 6: Final answer
    x = 206,972.30

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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.