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Finding the Fourth Proportional to 645,796.59, 968,170 and 225,367.71

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Solution

The fourth proportional to 645,796.59, 968,170 and 225,367.71 is: 337,868.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,796.59 : 968,170 = 225,367.71 : x
  2. Step 2: Convert to fraction form
    645,796.59/968,170 = 225,367.71/x
  3. Step 3: Cross multiply
    645,796.59x = 968,170 × 225,367.71
  4. Step 4: Simplify right side
    645,796.59x = 218,194,255,790.70
  5. Step 5: Solve for x
    x = 218,194,255,790.70/645,796.59
  6. Step 6: Final answer
    x = 337,868.39

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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.