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Finding the Third Proportional to 247,140 and 539,586

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Solution

The third proportional to 247,140 and 539,586 is: 1,178,089.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,140 : 539,586 = 539,586 : x
  2. Step 2: Convert to fraction form
    247,140/539,586 = 539,586/x
  3. Step 3: Cross multiply
    247,140x = 539,586 × 539,586
  4. Step 4: Simplify right side
    247,140x = 291,153,051,396
  5. Step 5: Solve for x
    x = 291,153,051,396/247,140
  6. Step 6: Final answer
    x = 1,178,089.55

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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.