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Finding the Fourth Proportional to 245,260.80, 367,891.20 and 120,844.80

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Solution

The fourth proportional to 245,260.80, 367,891.20 and 120,844.80 is: 181,267.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,260.80 : 367,891.20 = 120,844.80 : x
  2. Step 2: Convert to fraction form
    245,260.80/367,891.20 = 120,844.80/x
  3. Step 3: Cross multiply
    245,260.80x = 367,891.20 × 120,844.80
  4. Step 4: Simplify right side
    245,260.80x = 44,457,738,485.76
  5. Step 5: Solve for x
    x = 44,457,738,485.76/245,260.80
  6. Step 6: Final answer
    x = 181,267.20

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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.