Home / 392,868.42-589,346.10-140,207.82

Finding the Fourth Proportional to 392,868.42, 589,346.10 and 140,207.82

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Solution

The fourth proportional to 392,868.42, 589,346.10 and 140,207.82 is: 210,327.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,868.42 : 589,346.10 = 140,207.82 : x
  2. Step 2: Convert to fraction form
    392,868.42/589,346.10 = 140,207.82/x
  3. Step 3: Cross multiply
    392,868.42x = 589,346.10 × 140,207.82
  4. Step 4: Simplify right side
    392,868.42x = 82,630,931,906.50
  5. Step 5: Solve for x
    x = 82,630,931,906.50/392,868.42
  6. Step 6: Final answer
    x = 210,327.24

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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.