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Finding the Third Proportional to 111,657.56 and 243,391.13

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Solution

The third proportional to 111,657.56 and 243,391.13 is: 530,543.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,657.56 : 243,391.13 = 243,391.13 : x
  2. Step 2: Convert to fraction form
    111,657.56/243,391.13 = 243,391.13/x
  3. Step 3: Cross multiply
    111,657.56x = 243,391.13 × 243,391.13
  4. Step 4: Simplify right side
    111,657.56x = 59,239,239,728.77
  5. Step 5: Solve for x
    x = 59,239,239,728.77/111,657.56
  6. Step 6: Final answer
    x = 530,543.91

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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.