Home / 398,827.14-550,383.18-217,542.97

Finding the Fourth Proportional to 398,827.14, 550,383.18 and 217,542.97

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Solution

The fourth proportional to 398,827.14, 550,383.18 and 217,542.97 is: 300,210.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,827.14 : 550,383.18 = 217,542.97 : x
  2. Step 2: Convert to fraction form
    398,827.14/550,383.18 = 217,542.97/x
  3. Step 3: Cross multiply
    398,827.14x = 550,383.18 × 217,542.97
  4. Step 4: Simplify right side
    398,827.14x = 119,731,989,003.37
  5. Step 5: Solve for x
    x = 119,731,989,003.37/398,827.14
  6. Step 6: Final answer
    x = 300,210.23

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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.