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Finding the Fourth Proportional to 344,129.67, 515,993.63 and 133,521.57

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Solution

The fourth proportional to 344,129.67, 515,993.63 and 133,521.57 is: 200,204.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,129.67 : 515,993.63 = 133,521.57 : x
  2. Step 2: Convert to fraction form
    344,129.67/515,993.63 = 133,521.57/x
  3. Step 3: Cross multiply
    344,129.67x = 515,993.63 × 133,521.57
  4. Step 4: Simplify right side
    344,129.67x = 68,896,278,919.99
  5. Step 5: Solve for x
    x = 68,896,278,919.99/344,129.67
  6. Step 6: Final answer
    x = 200,204.41

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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.