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Finding the Third Proportional to 125,196 and 278,391

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Solution

The third proportional to 125,196 and 278,391 is: 619,041.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,196 : 278,391 = 278,391 : x
  2. Step 2: Convert to fraction form
    125,196/278,391 = 278,391/x
  3. Step 3: Cross multiply
    125,196x = 278,391 × 278,391
  4. Step 4: Simplify right side
    125,196x = 77,501,548,881
  5. Step 5: Solve for x
    x = 77,501,548,881/125,196
  6. Step 6: Final answer
    x = 619,041.73

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.