Home / 420,942.04-581,091.22-268,189.72

Finding the Fourth Proportional to 420,942.04, 581,091.22 and 268,189.72

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Solution

The fourth proportional to 420,942.04, 581,091.22 and 268,189.72 is: 370,223.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,942.04 : 581,091.22 = 268,189.72 : x
  2. Step 2: Convert to fraction form
    420,942.04/581,091.22 = 268,189.72/x
  3. Step 3: Cross multiply
    420,942.04x = 581,091.22 × 268,189.72
  4. Step 4: Simplify right side
    420,942.04x = 155,842,691,586.26
  5. Step 5: Solve for x
    x = 155,842,691,586.26/420,942.04
  6. Step 6: Final answer
    x = 370,223.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.