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Finding the Third Proportional to 290,339.44 and 625,170.66

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Solution

The third proportional to 290,339.44 and 625,170.66 is: 1,346,142.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,339.44 : 625,170.66 = 625,170.66 : x
  2. Step 2: Convert to fraction form
    290,339.44/625,170.66 = 625,170.66/x
  3. Step 3: Cross multiply
    290,339.44x = 625,170.66 × 625,170.66
  4. Step 4: Simplify right side
    290,339.44x = 390,838,349,436.06
  5. Step 5: Solve for x
    x = 390,838,349,436.06/290,339.44
  6. Step 6: Final answer
    x = 1,346,142.82

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.