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Finding the Fourth Proportional to 271,489.52, 405,029.89 and 256,792.88

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Solution

The fourth proportional to 271,489.52, 405,029.89 and 256,792.88 is: 383,104.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,489.52 : 405,029.89 = 256,792.88 : x
  2. Step 2: Convert to fraction form
    271,489.52/405,029.89 = 256,792.88/x
  3. Step 3: Cross multiply
    271,489.52x = 405,029.89 × 256,792.88
  4. Step 4: Simplify right side
    271,489.52x = 104,008,791,939.18
  5. Step 5: Solve for x
    x = 104,008,791,939.18/271,489.52
  6. Step 6: Final answer
    x = 383,104.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.