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Finding the Third Proportional to 259,875 and 388,750

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Solution

The third proportional to 259,875 and 388,750 is: 581,535.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,875 : 388,750 = 388,750 : x
  2. Step 2: Convert to fraction form
    259,875/388,750 = 388,750/x
  3. Step 3: Cross multiply
    259,875x = 388,750 × 388,750
  4. Step 4: Simplify right side
    259,875x = 151,126,562,500
  5. Step 5: Solve for x
    x = 151,126,562,500/259,875
  6. Step 6: Final answer
    x = 581,535.59

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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.