Home / 392,953.20-589,521.96-156,309.36

Finding the Fourth Proportional to 392,953.20, 589,521.96 and 156,309.36

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Solution

The fourth proportional to 392,953.20, 589,521.96 and 156,309.36 is: 234,500.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,953.20 : 589,521.96 = 156,309.36 : x
  2. Step 2: Convert to fraction form
    392,953.20/589,521.96 = 156,309.36/x
  3. Step 3: Cross multiply
    392,953.20x = 589,521.96 × 156,309.36
  4. Step 4: Simplify right side
    392,953.20x = 92,147,800,273.55
  5. Step 5: Solve for x
    x = 92,147,800,273.55/392,953.20
  6. Step 6: Final answer
    x = 234,500.70

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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.