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Finding the Third Proportional to 251,926.50 and 390,060.75

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Solution

The third proportional to 251,926.50 and 390,060.75 is: 603,935.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,926.50 : 390,060.75 = 390,060.75 : x
  2. Step 2: Convert to fraction form
    251,926.50/390,060.75 = 390,060.75/x
  3. Step 3: Cross multiply
    251,926.50x = 390,060.75 × 390,060.75
  4. Step 4: Simplify right side
    251,926.50x = 152,147,388,690.56
  5. Step 5: Solve for x
    x = 152,147,388,690.56/251,926.50
  6. Step 6: Final answer
    x = 603,935.63

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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.