Home / 392,579.49-589,044.15-143,203.17

Finding the Fourth Proportional to 392,579.49, 589,044.15 and 143,203.17

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Solution

The fourth proportional to 392,579.49, 589,044.15 and 143,203.17 is: 214,868.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,579.49 : 589,044.15 = 143,203.17 : x
  2. Step 2: Convert to fraction form
    392,579.49/589,044.15 = 143,203.17/x
  3. Step 3: Cross multiply
    392,579.49x = 589,044.15 × 143,203.17
  4. Step 4: Simplify right side
    392,579.49x = 84,352,989,549.96
  5. Step 5: Solve for x
    x = 84,352,989,549.96/392,579.49
  6. Step 6: Final answer
    x = 214,868.56

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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.