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Finding the Fourth Proportional to 500,620.06, 751,028.10 and 220,136.50

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Solution

The fourth proportional to 500,620.06, 751,028.10 and 220,136.50 is: 330,247.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,620.06 : 751,028.10 = 220,136.50 : x
  2. Step 2: Convert to fraction form
    500,620.06/751,028.10 = 220,136.50/x
  3. Step 3: Cross multiply
    500,620.06x = 751,028.10 × 220,136.50
  4. Step 4: Simplify right side
    500,620.06x = 165,328,697,335.65
  5. Step 5: Solve for x
    x = 165,328,697,335.65/500,620.06
  6. Step 6: Final answer
    x = 330,247.85

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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.