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Finding the Fourth Proportional to 200,151.54, 300,330.54 and 87,910.38

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Solution

The fourth proportional to 200,151.54, 300,330.54 and 87,910.38 is: 131,910.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,151.54 : 300,330.54 = 87,910.38 : x
  2. Step 2: Convert to fraction form
    200,151.54/300,330.54 = 87,910.38/x
  3. Step 3: Cross multiply
    200,151.54x = 300,330.54 × 87,910.38
  4. Step 4: Simplify right side
    200,151.54x = 26,402,171,897.01
  5. Step 5: Solve for x
    x = 26,402,171,897.01/200,151.54
  6. Step 6: Final answer
    x = 131,910.91

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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.