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Finding the Fourth Proportional to 512,184.40, 768,276.60 and 344,222.80

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Solution

The fourth proportional to 512,184.40, 768,276.60 and 344,222.80 is: 516,334.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,184.40 : 768,276.60 = 344,222.80 : x
  2. Step 2: Convert to fraction form
    512,184.40/768,276.60 = 344,222.80/x
  3. Step 3: Cross multiply
    512,184.40x = 768,276.60 × 344,222.80
  4. Step 4: Simplify right side
    512,184.40x = 264,458,322,426.48
  5. Step 5: Solve for x
    x = 264,458,322,426.48/512,184.40
  6. Step 6: Final answer
    x = 516,334.20

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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.