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Finding the Third Proportional to 315,375.75 and 453,340.13

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Solution

The third proportional to 315,375.75 and 453,340.13 is: 651,658.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,375.75 : 453,340.13 = 453,340.13 : x
  2. Step 2: Convert to fraction form
    315,375.75/453,340.13 = 453,340.13/x
  3. Step 3: Cross multiply
    315,375.75x = 453,340.13 × 453,340.13
  4. Step 4: Simplify right side
    315,375.75x = 205,517,268,935.02
  5. Step 5: Solve for x
    x = 205,517,268,935.02/315,375.75
  6. Step 6: Final answer
    x = 651,658.44

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.