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Finding the Fourth Proportional to 203,607.72, 305,431.02 and 63,328.68

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Solution

The fourth proportional to 203,607.72, 305,431.02 and 63,328.68 is: 94,999.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,607.72 : 305,431.02 = 63,328.68 : x
  2. Step 2: Convert to fraction form
    203,607.72/305,431.02 = 63,328.68/x
  3. Step 3: Cross multiply
    203,607.72x = 305,431.02 × 63,328.68
  4. Step 4: Simplify right side
    203,607.72x = 19,342,543,327.65
  5. Step 5: Solve for x
    x = 19,342,543,327.65/203,607.72
  6. Step 6: Final answer
    x = 94,999.07

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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.