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Finding the Third Proportional to 372,278 and 499,368

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Solution

The third proportional to 372,278 and 499,368 is: 669,844.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,278 : 499,368 = 499,368 : x
  2. Step 2: Convert to fraction form
    372,278/499,368 = 499,368/x
  3. Step 3: Cross multiply
    372,278x = 499,368 × 499,368
  4. Step 4: Simplify right side
    372,278x = 249,368,399,424
  5. Step 5: Solve for x
    x = 249,368,399,424/372,278
  6. Step 6: Final answer
    x = 669,844.58

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.