Home / 398,621.97-550,077.45-226,516.92

Finding the Fourth Proportional to 398,621.97, 550,077.45 and 226,516.92

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Solution

The fourth proportional to 398,621.97, 550,077.45 and 226,516.92 is: 312,581.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,621.97 : 550,077.45 = 226,516.92 : x
  2. Step 2: Convert to fraction form
    398,621.97/550,077.45 = 226,516.92/x
  3. Step 3: Cross multiply
    398,621.97x = 550,077.45 × 226,516.92
  4. Step 4: Simplify right side
    398,621.97x = 124,601,849,735.45
  5. Step 5: Solve for x
    x = 124,601,849,735.45/398,621.97
  6. Step 6: Final answer
    x = 312,581.49

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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.