Home / 398,931.75-550,523.20-226,849.73

Finding the Fourth Proportional to 398,931.75, 550,523.20 and 226,849.73

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Solution

The fourth proportional to 398,931.75, 550,523.20 and 226,849.73 is: 313,051.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,931.75 : 550,523.20 = 226,849.73 : x
  2. Step 2: Convert to fraction form
    398,931.75/550,523.20 = 226,849.73/x
  3. Step 3: Cross multiply
    398,931.75x = 550,523.20 × 226,849.73
  4. Step 4: Simplify right side
    398,931.75x = 124,886,035,391.87
  5. Step 5: Solve for x
    x = 124,886,035,391.87/398,931.75
  6. Step 6: Final answer
    x = 313,051.13

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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.