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Finding the Fourth Proportional to 300,247.99, 450,117.63 and 131,640.54

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Solution

The fourth proportional to 300,247.99, 450,117.63 and 131,640.54 is: 197,349.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,247.99 : 450,117.63 = 131,640.54 : x
  2. Step 2: Convert to fraction form
    300,247.99/450,117.63 = 131,640.54/x
  3. Step 3: Cross multiply
    300,247.99x = 450,117.63 × 131,640.54
  4. Step 4: Simplify right side
    300,247.99x = 59,253,729,090.93
  5. Step 5: Solve for x
    x = 59,253,729,090.93/300,247.99
  6. Step 6: Final answer
    x = 197,349.29

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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.