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Finding the Fourth Proportional to 271,863.78, 375,161.65 and 151,012.86

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Solution

The fourth proportional to 271,863.78, 375,161.65 and 151,012.86 is: 208,391.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,863.78 : 375,161.65 = 151,012.86 : x
  2. Step 2: Convert to fraction form
    271,863.78/375,161.65 = 151,012.86/x
  3. Step 3: Cross multiply
    271,863.78x = 375,161.65 × 151,012.86
  4. Step 4: Simplify right side
    271,863.78x = 56,654,233,728.82
  5. Step 5: Solve for x
    x = 56,654,233,728.82/271,863.78
  6. Step 6: Final answer
    x = 208,391.99

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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.