Home / 398,827.44-550,383.57-217,543.23

Finding the Fourth Proportional to 398,827.44, 550,383.57 and 217,543.23

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Solution

The fourth proportional to 398,827.44, 550,383.57 and 217,543.23 is: 300,210.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,827.44 : 550,383.57 = 217,543.23 : x
  2. Step 2: Convert to fraction form
    398,827.44/550,383.57 = 217,543.23/x
  3. Step 3: Cross multiply
    398,827.44x = 550,383.57 × 217,543.23
  4. Step 4: Simplify right side
    398,827.44x = 119,732,219,556.73
  5. Step 5: Solve for x
    x = 119,732,219,556.73/398,827.44
  6. Step 6: Final answer
    x = 300,210.59

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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.