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Finding the Fourth Proportional to 311,110.40, 465,974.40 and 255,814.40

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Solution

The fourth proportional to 311,110.40, 465,974.40 and 255,814.40 is: 383,153.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,110.40 : 465,974.40 = 255,814.40 : x
  2. Step 2: Convert to fraction form
    311,110.40/465,974.40 = 255,814.40/x
  3. Step 3: Cross multiply
    311,110.40x = 465,974.40 × 255,814.40
  4. Step 4: Simplify right side
    311,110.40x = 119,202,961,551.36
  5. Step 5: Solve for x
    x = 119,202,961,551.36/311,110.40
  6. Step 6: Final answer
    x = 383,153.25

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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.