Home / 445,943.82-615,402.89-254,961.21

Finding the Fourth Proportional to 445,943.82, 615,402.89 and 254,961.21

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Solution

The fourth proportional to 445,943.82, 615,402.89 and 254,961.21 is: 351,846.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,943.82 : 615,402.89 = 254,961.21 : x
  2. Step 2: Convert to fraction form
    445,943.82/615,402.89 = 254,961.21/x
  3. Step 3: Cross multiply
    445,943.82x = 615,402.89 × 254,961.21
  4. Step 4: Simplify right side
    445,943.82x = 156,903,866,109.30
  5. Step 5: Solve for x
    x = 156,903,866,109.30/445,943.82
  6. Step 6: Final answer
    x = 351,846.71

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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.