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Finding the Fourth Proportional to 271,188, 374,239.44 and 157,988.88

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Solution

The fourth proportional to 271,188, 374,239.44 and 157,988.88 is: 218,024.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,188 : 374,239.44 = 157,988.88 : x
  2. Step 2: Convert to fraction form
    271,188/374,239.44 = 157,988.88/x
  3. Step 3: Cross multiply
    271,188x = 374,239.44 × 157,988.88
  4. Step 4: Simplify right side
    271,188x = 59,125,669,977.43
  5. Step 5: Solve for x
    x = 59,125,669,977.43/271,188
  6. Step 6: Final answer
    x = 218,024.65

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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.