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Finding the Fourth Proportional to 201,334.68, 277,834.86 and 129,717.72

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Solution

The fourth proportional to 201,334.68, 277,834.86 and 129,717.72 is: 179,005.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,334.68 : 277,834.86 = 129,717.72 : x
  2. Step 2: Convert to fraction form
    201,334.68/277,834.86 = 129,717.72/x
  3. Step 3: Cross multiply
    201,334.68x = 277,834.86 × 129,717.72
  4. Step 4: Simplify right side
    201,334.68x = 36,040,104,575.72
  5. Step 5: Solve for x
    x = 36,040,104,575.72/201,334.68
  6. Step 6: Final answer
    x = 179,005.94

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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.