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Finding the Fourth Proportional to 365,366.20, 548,049.30 and 128,975.80

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Solution

The fourth proportional to 365,366.20, 548,049.30 and 128,975.80 is: 193,463.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,366.20 : 548,049.30 = 128,975.80 : x
  2. Step 2: Convert to fraction form
    365,366.20/548,049.30 = 128,975.80/x
  3. Step 3: Cross multiply
    365,366.20x = 548,049.30 × 128,975.80
  4. Step 4: Simplify right side
    365,366.20x = 70,685,096,906.94
  5. Step 5: Solve for x
    x = 70,685,096,906.94/365,366.20
  6. Step 6: Final answer
    x = 193,463.70

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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.