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Finding the Fourth Proportional to 218,607.66, 301,687.74 and 123,114.06

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Solution

The fourth proportional to 218,607.66, 301,687.74 and 123,114.06 is: 169,902.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,607.66 : 301,687.74 = 123,114.06 : x
  2. Step 2: Convert to fraction form
    218,607.66/301,687.74 = 123,114.06/x
  3. Step 3: Cross multiply
    218,607.66x = 301,687.74 × 123,114.06
  4. Step 4: Simplify right side
    218,607.66x = 37,142,002,523.62
  5. Step 5: Solve for x
    x = 37,142,002,523.62/218,607.66
  6. Step 6: Final answer
    x = 169,902.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.