Home / 309,809.27-427,579.34-173,851.25

Finding the Fourth Proportional to 309,809.27, 427,579.34 and 173,851.25

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Solution

The fourth proportional to 309,809.27, 427,579.34 and 173,851.25 is: 239,938.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,809.27 : 427,579.34 = 173,851.25 : x
  2. Step 2: Convert to fraction form
    309,809.27/427,579.34 = 173,851.25/x
  3. Step 3: Cross multiply
    309,809.27x = 427,579.34 × 173,851.25
  4. Step 4: Simplify right side
    309,809.27x = 74,335,203,917.66
  5. Step 5: Solve for x
    x = 74,335,203,917.66/309,809.27
  6. Step 6: Final answer
    x = 239,938.61

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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.