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Finding the Third Proportional to 184,488 and 278,428

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Solution

The third proportional to 184,488 and 278,428 is: 420,201.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    184,488 : 278,428 = 278,428 : x
  2. Step 2: Convert to fraction form
    184,488/278,428 = 278,428/x
  3. Step 3: Cross multiply
    184,488x = 278,428 × 278,428
  4. Step 4: Simplify right side
    184,488x = 77,522,151,184
  5. Step 5: Solve for x
    x = 77,522,151,184/184,488
  6. Step 6: Final answer
    x = 420,201.59

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.