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Finding the Fourth Proportional to 203,426.70, 305,140.05 and 55,682.70

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Solution

The fourth proportional to 203,426.70, 305,140.05 and 55,682.70 is: 83,524.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,426.70 : 305,140.05 = 55,682.70 : x
  2. Step 2: Convert to fraction form
    203,426.70/305,140.05 = 55,682.70/x
  3. Step 3: Cross multiply
    203,426.70x = 305,140.05 × 55,682.70
  4. Step 4: Simplify right side
    203,426.70x = 16,991,021,862.14
  5. Step 5: Solve for x
    x = 16,991,021,862.14/203,426.70
  6. Step 6: Final answer
    x = 83,524.05

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1.5x scale

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.