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Finding the Fourth Proportional to 279,701.64, 419,034.60 and 216,297

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Solution

The fourth proportional to 279,701.64, 419,034.60 and 216,297 is: 324,045.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,701.64 : 419,034.60 = 216,297 : x
  2. Step 2: Convert to fraction form
    279,701.64/419,034.60 = 216,297/x
  3. Step 3: Cross multiply
    279,701.64x = 419,034.60 × 216,297
  4. Step 4: Simplify right side
    279,701.64x = 90,635,926,876.20
  5. Step 5: Solve for x
    x = 90,635,926,876.20/279,701.64
  6. Step 6: Final answer
    x = 324,045.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.