Home / 398,827.14-550,371.42-217,543.20

Finding the Fourth Proportional to 398,827.14, 550,371.42 and 217,543.20

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Solution

The fourth proportional to 398,827.14, 550,371.42 and 217,543.20 is: 300,204.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,827.14 : 550,371.42 = 217,543.20 : x
  2. Step 2: Convert to fraction form
    398,827.14/550,371.42 = 217,543.20/x
  3. Step 3: Cross multiply
    398,827.14x = 550,371.42 × 217,543.20
  4. Step 4: Simplify right side
    398,827.14x = 119,729,559,895.34
  5. Step 5: Solve for x
    x = 119,729,559,895.34/398,827.14
  6. Step 6: Final answer
    x = 300,204.14

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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.