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Finding the Fourth Proportional to 343,872.54, 515,137.76 and 225,184.05

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Solution

The fourth proportional to 343,872.54, 515,137.76 and 225,184.05 is: 337,336.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,872.54 : 515,137.76 = 225,184.05 : x
  2. Step 2: Convert to fraction form
    343,872.54/515,137.76 = 225,184.05/x
  3. Step 3: Cross multiply
    343,872.54x = 515,137.76 × 225,184.05
  4. Step 4: Simplify right side
    343,872.54x = 116,000,806,823.25
  5. Step 5: Solve for x
    x = 116,000,806,823.25/343,872.54
  6. Step 6: Final answer
    x = 337,336.64

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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.