Home / 392,869.17-589,347.23-140,208.57

Finding the Fourth Proportional to 392,869.17, 589,347.23 and 140,208.57

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Solution

The fourth proportional to 392,869.17, 589,347.23 and 140,208.57 is: 210,328.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,869.17 : 589,347.23 = 140,208.57 : x
  2. Step 2: Convert to fraction form
    392,869.17/589,347.23 = 140,208.57/x
  3. Step 3: Cross multiply
    392,869.17x = 589,347.23 × 140,208.57
  4. Step 4: Simplify right side
    392,869.17x = 82,631,531,650.72
  5. Step 5: Solve for x
    x = 82,631,531,650.72/392,869.17
  6. Step 6: Final answer
    x = 210,328.37

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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.