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Finding the Third Proportional to 251,298.75 and 388,612.88

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Solution

The third proportional to 251,298.75 and 388,612.88 is: 600,957.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,298.75 : 388,612.88 = 388,612.88 : x
  2. Step 2: Convert to fraction form
    251,298.75/388,612.88 = 388,612.88/x
  3. Step 3: Cross multiply
    251,298.75x = 388,612.88 × 388,612.88
  4. Step 4: Simplify right side
    251,298.75x = 151,019,966,615.77
  5. Step 5: Solve for x
    x = 151,019,966,615.77/251,298.75
  6. Step 6: Final answer
    x = 600,957.89

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.