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Finding the Third Proportional to 236,430 and 353,810

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Solution

The third proportional to 236,430 and 353,810 is: 529,465.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,430 : 353,810 = 353,810 : x
  2. Step 2: Convert to fraction form
    236,430/353,810 = 353,810/x
  3. Step 3: Cross multiply
    236,430x = 353,810 × 353,810
  4. Step 4: Simplify right side
    236,430x = 125,181,516,100
  5. Step 5: Solve for x
    x = 125,181,516,100/236,430
  6. Step 6: Final answer
    x = 529,465.45

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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.