Home / 399,232.86-550,933.11-217,948.38

Finding the Fourth Proportional to 399,232.86, 550,933.11 and 217,948.38

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Solution

The fourth proportional to 399,232.86, 550,933.11 and 217,948.38 is: 300,764.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,232.86 : 550,933.11 = 217,948.38 : x
  2. Step 2: Convert to fraction form
    399,232.86/550,933.11 = 217,948.38/x
  3. Step 3: Cross multiply
    399,232.86x = 550,933.11 × 217,948.38
  4. Step 4: Simplify right side
    399,232.86x = 120,074,978,812.86
  5. Step 5: Solve for x
    x = 120,074,978,812.86/399,232.86
  6. Step 6: Final answer
    x = 300,764.27

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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.