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Finding the Fourth Proportional to 500,619.56, 751,027.35 and 220,136

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Solution

The fourth proportional to 500,619.56, 751,027.35 and 220,136 is: 330,247.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,619.56 : 751,027.35 = 220,136 : x
  2. Step 2: Convert to fraction form
    500,619.56/751,027.35 = 220,136/x
  3. Step 3: Cross multiply
    500,619.56x = 751,027.35 × 220,136
  4. Step 4: Simplify right side
    500,619.56x = 165,328,156,719.60
  5. Step 5: Solve for x
    x = 165,328,156,719.60/500,619.56
  6. Step 6: Final answer
    x = 330,247.10

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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.