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Finding the Fourth Proportional to 181,289, 271,739.10 and 87,588.20

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Solution

The fourth proportional to 181,289, 271,739.10 and 87,588.20 is: 131,288.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,289 : 271,739.10 = 87,588.20 : x
  2. Step 2: Convert to fraction form
    181,289/271,739.10 = 87,588.20/x
  3. Step 3: Cross multiply
    181,289x = 271,739.10 × 87,588.20
  4. Step 4: Simplify right side
    181,289x = 23,801,138,638.62
  5. Step 5: Solve for x
    x = 23,801,138,638.62/181,289
  6. Step 6: Final answer
    x = 131,288.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.