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Finding the Fourth Proportional to 296,998.60, 445,878.06 and 255,146.44

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Solution

The fourth proportional to 296,998.60, 445,878.06 and 255,146.44 is: 383,046.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,998.60 : 445,878.06 = 255,146.44 : x
  2. Step 2: Convert to fraction form
    296,998.60/445,878.06 = 255,146.44/x
  3. Step 3: Cross multiply
    296,998.60x = 445,878.06 × 255,146.44
  4. Step 4: Simplify right side
    296,998.60x = 113,764,199,683.11
  5. Step 5: Solve for x
    x = 113,764,199,683.11/296,998.60
  6. Step 6: Final answer
    x = 383,046.25

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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.