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Finding the Fourth Proportional to 401,200.20, 601,605.90 and 223,518.60

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Solution

The fourth proportional to 401,200.20, 601,605.90 and 223,518.60 is: 335,169.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,200.20 : 601,605.90 = 223,518.60 : x
  2. Step 2: Convert to fraction form
    401,200.20/601,605.90 = 223,518.60/x
  3. Step 3: Cross multiply
    401,200.20x = 601,605.90 × 223,518.60
  4. Step 4: Simplify right side
    401,200.20x = 134,470,108,519.74
  5. Step 5: Solve for x
    x = 134,470,108,519.74/401,200.20
  6. Step 6: Final answer
    x = 335,169.59

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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.