Home / 239,938.49-331,064.19-143,116.62

Finding the Fourth Proportional to 239,938.49, 331,064.19 and 143,116.62

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Solution

The fourth proportional to 239,938.49, 331,064.19 and 143,116.62 is: 197,470.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,938.49 : 331,064.19 = 143,116.62 : x
  2. Step 2: Convert to fraction form
    239,938.49/331,064.19 = 143,116.62/x
  3. Step 3: Cross multiply
    239,938.49x = 331,064.19 × 143,116.62
  4. Step 4: Simplify right side
    239,938.49x = 47,380,787,875.84
  5. Step 5: Solve for x
    x = 47,380,787,875.84/239,938.49
  6. Step 6: Final answer
    x = 197,470.56

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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.