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Finding the Fourth Proportional to 533,280.80, 800,266.80 and 308,640.80

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Solution

The fourth proportional to 533,280.80, 800,266.80 and 308,640.80 is: 463,161.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,280.80 : 800,266.80 = 308,640.80 : x
  2. Step 2: Convert to fraction form
    533,280.80/800,266.80 = 308,640.80/x
  3. Step 3: Cross multiply
    533,280.80x = 800,266.80 × 308,640.80
  4. Step 4: Simplify right side
    533,280.80x = 246,994,985,365.44
  5. Step 5: Solve for x
    x = 246,994,985,365.44/533,280.80
  6. Step 6: Final answer
    x = 463,161.22

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1.5x scale

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.