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Finding the Fourth Proportional to 273,299.69, 409,564.18 and 129,051.61

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Solution

The fourth proportional to 273,299.69, 409,564.18 and 129,051.61 is: 193,395.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,299.69 : 409,564.18 = 129,051.61 : x
  2. Step 2: Convert to fraction form
    273,299.69/409,564.18 = 129,051.61/x
  3. Step 3: Cross multiply
    273,299.69x = 409,564.18 × 129,051.61
  4. Step 4: Simplify right side
    273,299.69x = 52,854,915,480.79
  5. Step 5: Solve for x
    x = 52,854,915,480.79/273,299.69
  6. Step 6: Final answer
    x = 193,395.45

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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.