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Finding the Fourth Proportional to 271,120, 374,149.92 and 151,888

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Solution

The fourth proportional to 271,120, 374,149.92 and 151,888 is: 209,607.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,120 : 374,149.92 = 151,888 : x
  2. Step 2: Convert to fraction form
    271,120/374,149.92 = 151,888/x
  3. Step 3: Cross multiply
    271,120x = 374,149.92 × 151,888
  4. Step 4: Simplify right side
    271,120x = 56,828,883,048.96
  5. Step 5: Solve for x
    x = 56,828,883,048.96/271,120
  6. Step 6: Final answer
    x = 209,607.86

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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.