Home / 305,811.72-422,025.39-167,996.46

Finding the Fourth Proportional to 305,811.72, 422,025.39 and 167,996.46

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Solution

The fourth proportional to 305,811.72, 422,025.39 and 167,996.46 is: 231,837.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,811.72 : 422,025.39 = 167,996.46 : x
  2. Step 2: Convert to fraction form
    305,811.72/422,025.39 = 167,996.46/x
  3. Step 3: Cross multiply
    305,811.72x = 422,025.39 × 167,996.46
  4. Step 4: Simplify right side
    305,811.72x = 70,898,771,550.12
  5. Step 5: Solve for x
    x = 70,898,771,550.12/305,811.72
  6. Step 6: Final answer
    x = 231,837.98

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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.