Home / 438,733.38-658,016.84-213,867.66

Finding the Fourth Proportional to 438,733.38, 658,016.84 and 213,867.66

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Solution

The fourth proportional to 438,733.38, 658,016.84 and 213,867.66 is: 320,760.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,733.38 : 658,016.84 = 213,867.66 : x
  2. Step 2: Convert to fraction form
    438,733.38/658,016.84 = 213,867.66/x
  3. Step 3: Cross multiply
    438,733.38x = 658,016.84 × 213,867.66
  4. Step 4: Simplify right side
    438,733.38x = 140,728,521,811.39
  5. Step 5: Solve for x
    x = 140,728,521,811.39/438,733.38
  6. Step 6: Final answer
    x = 320,760.92

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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.