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Finding the Third Proportional to 317,736 and 469,210

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Solution

The third proportional to 317,736 and 469,210 is: 692,896.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,736 : 469,210 = 469,210 : x
  2. Step 2: Convert to fraction form
    317,736/469,210 = 469,210/x
  3. Step 3: Cross multiply
    317,736x = 469,210 × 469,210
  4. Step 4: Simplify right side
    317,736x = 220,158,024,100
  5. Step 5: Solve for x
    x = 220,158,024,100/317,736
  6. Step 6: Final answer
    x = 692,896.06

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.