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Finding the Fourth Proportional to 271,975.68, 375,218.95 and 157,233.21

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Solution

The fourth proportional to 271,975.68, 375,218.95 and 157,233.21 is: 216,919.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,975.68 : 375,218.95 = 157,233.21 : x
  2. Step 2: Convert to fraction form
    271,975.68/375,218.95 = 157,233.21/x
  3. Step 3: Cross multiply
    271,975.68x = 375,218.95 × 157,233.21
  4. Step 4: Simplify right side
    271,975.68x = 58,996,879,961.33
  5. Step 5: Solve for x
    x = 58,996,879,961.33/271,975.68
  6. Step 6: Final answer
    x = 216,919.69

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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.