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Finding the Fourth Proportional to 363,279.60, 544,919.40 and 262,969.20

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Solution

The fourth proportional to 363,279.60, 544,919.40 and 262,969.20 is: 394,453.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,279.60 : 544,919.40 = 262,969.20 : x
  2. Step 2: Convert to fraction form
    363,279.60/544,919.40 = 262,969.20/x
  3. Step 3: Cross multiply
    363,279.60x = 544,919.40 × 262,969.20
  4. Step 4: Simplify right side
    363,279.60x = 143,297,018,682.48
  5. Step 5: Solve for x
    x = 143,297,018,682.48/363,279.60
  6. Step 6: Final answer
    x = 394,453.80

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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.