Home / 438,016.46-657,046.22-213,568.75

Finding the Fourth Proportional to 438,016.46, 657,046.22 and 213,568.75

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Solution

The fourth proportional to 438,016.46, 657,046.22 and 213,568.75 is: 320,363.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,016.46 : 657,046.22 = 213,568.75 : x
  2. Step 2: Convert to fraction form
    438,016.46/657,046.22 = 213,568.75/x
  3. Step 3: Cross multiply
    438,016.46x = 657,046.22 × 213,568.75
  4. Step 4: Simplify right side
    438,016.46x = 140,324,540,552.08
  5. Step 5: Solve for x
    x = 140,324,540,552.08/438,016.46
  6. Step 6: Final answer
    x = 320,363.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.