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Finding the Fourth Proportional to 367,007.80, 550,511.70 and 311,020.60

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Solution

The fourth proportional to 367,007.80, 550,511.70 and 311,020.60 is: 466,530.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,007.80 : 550,511.70 = 311,020.60 : x
  2. Step 2: Convert to fraction form
    367,007.80/550,511.70 = 311,020.60/x
  3. Step 3: Cross multiply
    367,007.80x = 550,511.70 × 311,020.60
  4. Step 4: Simplify right side
    367,007.80x = 171,220,479,241.02
  5. Step 5: Solve for x
    x = 171,220,479,241.02/367,007.80
  6. Step 6: Final answer
    x = 466,530.90

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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.