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Finding the Third Proportional to 155,365 and 239,916

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Solution

The third proportional to 155,365 and 239,916 is: 370,480.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,365 : 239,916 = 239,916 : x
  2. Step 2: Convert to fraction form
    155,365/239,916 = 239,916/x
  3. Step 3: Cross multiply
    155,365x = 239,916 × 239,916
  4. Step 4: Simplify right side
    155,365x = 57,559,687,056
  5. Step 5: Solve for x
    x = 57,559,687,056/155,365
  6. Step 6: Final answer
    x = 370,480.40

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.