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Finding the Fourth Proportional to 445,769.36, 615,204.15 and 254,745.71

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Solution

The fourth proportional to 445,769.36, 615,204.15 and 254,745.71 is: 351,573.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,769.36 : 615,204.15 = 254,745.71 : x
  2. Step 2: Convert to fraction form
    445,769.36/615,204.15 = 254,745.71/x
  3. Step 3: Cross multiply
    445,769.36x = 615,204.15 × 254,745.71
  4. Step 4: Simplify right side
    445,769.36x = 156,720,617,986.70
  5. Step 5: Solve for x
    x = 156,720,617,986.70/445,769.36
  6. Step 6: Final answer
    x = 351,573.33

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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.