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Finding the Fourth Proportional to 447,930.75, 618,122.75 and 254,313.07

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Solution

The fourth proportional to 447,930.75, 618,122.75 and 254,313.07 is: 350,939.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,930.75 : 618,122.75 = 254,313.07 : x
  2. Step 2: Convert to fraction form
    447,930.75/618,122.75 = 254,313.07/x
  3. Step 3: Cross multiply
    447,930.75x = 618,122.75 × 254,313.07
  4. Step 4: Simplify right side
    447,930.75x = 157,196,695,284.04
  5. Step 5: Solve for x
    x = 157,196,695,284.04/447,930.75
  6. Step 6: Final answer
    x = 350,939.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.