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Finding the Fourth Proportional to 250,459.62, 345,669.72 and 154,997.08

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Solution

The fourth proportional to 250,459.62, 345,669.72 and 154,997.08 is: 213,917.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,459.62 : 345,669.72 = 154,997.08 : x
  2. Step 2: Convert to fraction form
    250,459.62/345,669.72 = 154,997.08/x
  3. Step 3: Cross multiply
    250,459.62x = 345,669.72 × 154,997.08
  4. Step 4: Simplify right side
    250,459.62x = 53,577,797,244.42
  5. Step 5: Solve for x
    x = 53,577,797,244.42/250,459.62
  6. Step 6: Final answer
    x = 213,917.91

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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.