Home / 352,428.82-485,984.14-209,161.18

Finding the Fourth Proportional to 352,428.82, 485,984.14 and 209,161.18

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Solution

The fourth proportional to 352,428.82, 485,984.14 and 209,161.18 is: 288,424.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,428.82 : 485,984.14 = 209,161.18 : x
  2. Step 2: Convert to fraction form
    352,428.82/485,984.14 = 209,161.18/x
  3. Step 3: Cross multiply
    352,428.82x = 485,984.14 × 209,161.18
  4. Step 4: Simplify right side
    352,428.82x = 101,649,017,921.55
  5. Step 5: Solve for x
    x = 101,649,017,921.55/352,428.82
  6. Step 6: Final answer
    x = 288,424.25

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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.