Home / 231,639.80-348,202.10-215,204.60

Finding the Fourth Proportional to 231,639.80, 348,202.10 and 215,204.60

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Solution

The fourth proportional to 231,639.80, 348,202.10 and 215,204.60 is: 323,496.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,639.80 : 348,202.10 = 215,204.60 : x
  2. Step 2: Convert to fraction form
    231,639.80/348,202.10 = 215,204.60/x
  3. Step 3: Cross multiply
    231,639.80x = 348,202.10 × 215,204.60
  4. Step 4: Simplify right side
    231,639.80x = 74,934,693,649.66
  5. Step 5: Solve for x
    x = 74,934,693,649.66/231,639.80
  6. Step 6: Final answer
    x = 323,496.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.