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Finding the Fourth Proportional to 325,922.20, 488,300.10 and 266,435.80

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Solution

The fourth proportional to 325,922.20, 488,300.10 and 266,435.80 is: 399,176.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,922.20 : 488,300.10 = 266,435.80 : x
  2. Step 2: Convert to fraction form
    325,922.20/488,300.10 = 266,435.80/x
  3. Step 3: Cross multiply
    325,922.20x = 488,300.10 × 266,435.80
  4. Step 4: Simplify right side
    325,922.20x = 130,100,627,783.58
  5. Step 5: Solve for x
    x = 130,100,627,783.58/325,922.20
  6. Step 6: Final answer
    x = 399,176.94

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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.