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Finding the Fourth Proportional to 279,098.40, 418,647.60 and 264,664.20

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Solution

The fourth proportional to 279,098.40, 418,647.60 and 264,664.20 is: 396,996.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,098.40 : 418,647.60 = 264,664.20 : x
  2. Step 2: Convert to fraction form
    279,098.40/418,647.60 = 264,664.20/x
  3. Step 3: Cross multiply
    279,098.40x = 418,647.60 × 264,664.20
  4. Step 4: Simplify right side
    279,098.40x = 110,801,032,135.92
  5. Step 5: Solve for x
    x = 110,801,032,135.92/279,098.40
  6. Step 6: Final answer
    x = 396,996.30

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1.5x scale

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.