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Finding the Fourth Proportional to 271,976.68, 375,220.33 and 157,234.21

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Solution

The fourth proportional to 271,976.68, 375,220.33 and 157,234.21 is: 216,921.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,976.68 : 375,220.33 = 157,234.21 : x
  2. Step 2: Convert to fraction form
    271,976.68/375,220.33 = 157,234.21/x
  3. Step 3: Cross multiply
    271,976.68x = 375,220.33 × 157,234.21
  4. Step 4: Simplify right side
    271,976.68x = 58,997,472,163.49
  5. Step 5: Solve for x
    x = 58,997,472,163.49/271,976.68
  6. Step 6: Final answer
    x = 216,921.07

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1.5x scale

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.