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Finding the Fourth Proportional to 343,672.71, 515,886.16 and 273,049.31

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Solution

The fourth proportional to 343,672.71, 515,886.16 and 273,049.31 is: 409,873.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,672.71 : 515,886.16 = 273,049.31 : x
  2. Step 2: Convert to fraction form
    343,672.71/515,886.16 = 273,049.31/x
  3. Step 3: Cross multiply
    343,672.71x = 515,886.16 × 273,049.31
  4. Step 4: Simplify right side
    343,672.71x = 140,862,360,026.55
  5. Step 5: Solve for x
    x = 140,862,360,026.55/343,672.71
  6. Step 6: Final answer
    x = 409,873.57

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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.