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Finding the Fourth Proportional to 343,940.10, 515,734.50 and 202,062.52

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Solution

The fourth proportional to 343,940.10, 515,734.50 and 202,062.52 is: 302,990.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,940.10 : 515,734.50 = 202,062.52 : x
  2. Step 2: Convert to fraction form
    343,940.10/515,734.50 = 202,062.52/x
  3. Step 3: Cross multiply
    343,940.10x = 515,734.50 × 202,062.52
  4. Step 4: Simplify right side
    343,940.10x = 104,210,612,720.94
  5. Step 5: Solve for x
    x = 104,210,612,720.94/343,940.10
  6. Step 6: Final answer
    x = 302,990.59

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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.