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Finding the Third Proportional to 222,133.50 and 317,430

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Solution

The third proportional to 222,133.50 and 317,430 is: 453,609.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,133.50 : 317,430 = 317,430 : x
  2. Step 2: Convert to fraction form
    222,133.50/317,430 = 317,430/x
  3. Step 3: Cross multiply
    222,133.50x = 317,430 × 317,430
  4. Step 4: Simplify right side
    222,133.50x = 100,761,804,900
  5. Step 5: Solve for x
    x = 100,761,804,900/222,133.50
  6. Step 6: Final answer
    x = 453,609.23

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.