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Finding the Fourth Proportional to 271,983.21, 407,974.74 and 84,994.71

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Solution

The fourth proportional to 271,983.21, 407,974.74 and 84,994.71 is: 127,492.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,983.21 : 407,974.74 = 84,994.71 : x
  2. Step 2: Convert to fraction form
    271,983.21/407,974.74 = 84,994.71/x
  3. Step 3: Cross multiply
    271,983.21x = 407,974.74 × 84,994.71
  4. Step 4: Simplify right side
    271,983.21x = 34,675,694,713.63
  5. Step 5: Solve for x
    x = 34,675,694,713.63/271,983.21
  6. Step 6: Final answer
    x = 127,492.04

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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.