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Finding the Third Proportional to 237,918 and 347,940

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Solution

The third proportional to 237,918 and 347,940 is: 508,840.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,918 : 347,940 = 347,940 : x
  2. Step 2: Convert to fraction form
    237,918/347,940 = 347,940/x
  3. Step 3: Cross multiply
    237,918x = 347,940 × 347,940
  4. Step 4: Simplify right side
    237,918x = 121,062,243,600
  5. Step 5: Solve for x
    x = 121,062,243,600/237,918
  6. Step 6: Final answer
    x = 508,840.20

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.