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Finding the Third Proportional to 251,698.50 and 388,854

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Solution

The third proportional to 251,698.50 and 388,854 is: 600,748.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,698.50 : 388,854 = 388,854 : x
  2. Step 2: Convert to fraction form
    251,698.50/388,854 = 388,854/x
  3. Step 3: Cross multiply
    251,698.50x = 388,854 × 388,854
  4. Step 4: Simplify right side
    251,698.50x = 151,207,433,316
  5. Step 5: Solve for x
    x = 151,207,433,316/251,698.50
  6. Step 6: Final answer
    x = 600,748.25

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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.