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Finding the Third Proportional to 248,139 and 302,571

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Solution

The third proportional to 248,139 and 302,571 is: 368,943.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,139 : 302,571 = 302,571 : x
  2. Step 2: Convert to fraction form
    248,139/302,571 = 302,571/x
  3. Step 3: Cross multiply
    248,139x = 302,571 × 302,571
  4. Step 4: Simplify right side
    248,139x = 91,549,210,041
  5. Step 5: Solve for x
    x = 91,549,210,041/248,139
  6. Step 6: Final answer
    x = 368,943.25

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Why These Related Problems?

These problems maintain the same ratio (1.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.