Home / 393,023.37-589,659.67-140,298.45

Finding the Fourth Proportional to 393,023.37, 589,659.67 and 140,298.45

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Solution

The fourth proportional to 393,023.37, 589,659.67 and 140,298.45 is: 210,492.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,023.37 : 589,659.67 = 140,298.45 : x
  2. Step 2: Convert to fraction form
    393,023.37/589,659.67 = 140,298.45/x
  3. Step 3: Cross multiply
    393,023.37x = 589,659.67 × 140,298.45
  4. Step 4: Simplify right side
    393,023.37x = 82,728,335,692.66
  5. Step 5: Solve for x
    x = 82,728,335,692.66/393,023.37
  6. Step 6: Final answer
    x = 210,492.15

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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.