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Finding the Fourth Proportional to 264,845.80, 397,268.70 and 247,220.20

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Solution

The fourth proportional to 264,845.80, 397,268.70 and 247,220.20 is: 370,830.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,845.80 : 397,268.70 = 247,220.20 : x
  2. Step 2: Convert to fraction form
    264,845.80/397,268.70 = 247,220.20/x
  3. Step 3: Cross multiply
    264,845.80x = 397,268.70 × 247,220.20
  4. Step 4: Simplify right side
    264,845.80x = 98,212,847,467.74
  5. Step 5: Solve for x
    x = 98,212,847,467.74/264,845.80
  6. Step 6: Final answer
    x = 370,830.30

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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.