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Finding the Fourth Proportional to 271,679.40, 407,519.10 and 269,929.80

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Solution

The fourth proportional to 271,679.40, 407,519.10 and 269,929.80 is: 404,894.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,679.40 : 407,519.10 = 269,929.80 : x
  2. Step 2: Convert to fraction form
    271,679.40/407,519.10 = 269,929.80/x
  3. Step 3: Cross multiply
    271,679.40x = 407,519.10 × 269,929.80
  4. Step 4: Simplify right side
    271,679.40x = 110,001,549,159.18
  5. Step 5: Solve for x
    x = 110,001,549,159.18/271,679.40
  6. Step 6: Final answer
    x = 404,894.70

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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.