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Finding the Third Proportional to 247,040 and 538,688

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Solution

The third proportional to 247,040 and 538,688 is: 1,174,646.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,040 : 538,688 = 538,688 : x
  2. Step 2: Convert to fraction form
    247,040/538,688 = 538,688/x
  3. Step 3: Cross multiply
    247,040x = 538,688 × 538,688
  4. Step 4: Simplify right side
    247,040x = 290,184,761,344
  5. Step 5: Solve for x
    x = 290,184,761,344/247,040
  6. Step 6: Final answer
    x = 1,174,646.86

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.