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Finding the Fourth Proportional to 203,477.94, 305,118.42 and 70,311.48

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Solution

The fourth proportional to 203,477.94, 305,118.42 and 70,311.48 is: 105,433.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,477.94 : 305,118.42 = 70,311.48 : x
  2. Step 2: Convert to fraction form
    203,477.94/305,118.42 = 70,311.48/x
  3. Step 3: Cross multiply
    203,477.94x = 305,118.42 × 70,311.48
  4. Step 4: Simplify right side
    203,477.94x = 21,453,327,685.46
  5. Step 5: Solve for x
    x = 21,453,327,685.46/203,477.94
  6. Step 6: Final answer
    x = 105,433.19

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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.