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Finding the Fourth Proportional to 300,086.40, 450,129.60 and 194,332.80

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Solution

The fourth proportional to 300,086.40, 450,129.60 and 194,332.80 is: 291,499.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,086.40 : 450,129.60 = 194,332.80 : x
  2. Step 2: Convert to fraction form
    300,086.40/450,129.60 = 194,332.80/x
  3. Step 3: Cross multiply
    300,086.40x = 450,129.60 × 194,332.80
  4. Step 4: Simplify right side
    300,086.40x = 87,474,945,530.88
  5. Step 5: Solve for x
    x = 87,474,945,530.88/300,086.40
  6. Step 6: Final answer
    x = 291,499.20

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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.