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Finding the Fourth Proportional to 371,040.35, 512,035.85 and 209,891.97

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Solution

The fourth proportional to 371,040.35, 512,035.85 and 209,891.97 is: 289,651.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,040.35 : 512,035.85 = 209,891.97 : x
  2. Step 2: Convert to fraction form
    371,040.35/512,035.85 = 209,891.97/x
  3. Step 3: Cross multiply
    371,040.35x = 512,035.85 × 209,891.97
  4. Step 4: Simplify right side
    371,040.35x = 107,472,211,871.72
  5. Step 5: Solve for x
    x = 107,472,211,871.72/371,040.35
  6. Step 6: Final answer
    x = 289,651.01

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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.