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Finding the Third Proportional to 312,275.25 and 471,814.50

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Solution

The third proportional to 312,275.25 and 471,814.50 is: 712,861.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,275.25 : 471,814.50 = 471,814.50 : x
  2. Step 2: Convert to fraction form
    312,275.25/471,814.50 = 471,814.50/x
  3. Step 3: Cross multiply
    312,275.25x = 471,814.50 × 471,814.50
  4. Step 4: Simplify right side
    312,275.25x = 222,608,922,410.25
  5. Step 5: Solve for x
    x = 222,608,922,410.25/312,275.25
  6. Step 6: Final answer
    x = 712,861.24

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.