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Finding the Fourth Proportional to 245,770.40, 367,964.40 and 220,887.20

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Solution

The fourth proportional to 245,770.40, 367,964.40 and 220,887.20 is: 330,709.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,770.40 : 367,964.40 = 220,887.20 : x
  2. Step 2: Convert to fraction form
    245,770.40/367,964.40 = 220,887.20/x
  3. Step 3: Cross multiply
    245,770.40x = 367,964.40 × 220,887.20
  4. Step 4: Simplify right side
    245,770.40x = 81,278,626,015.68
  5. Step 5: Solve for x
    x = 81,278,626,015.68/245,770.40
  6. Step 6: Final answer
    x = 330,709.58

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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.