Home / 203,621.85-305,520.26-144,835.29

Finding the Fourth Proportional to 203,621.85, 305,520.26 and 144,835.29

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Solution

The fourth proportional to 203,621.85, 305,520.26 and 144,835.29 is: 217,315.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,621.85 : 305,520.26 = 144,835.29 : x
  2. Step 2: Convert to fraction form
    203,621.85/305,520.26 = 144,835.29/x
  3. Step 3: Cross multiply
    203,621.85x = 305,520.26 × 144,835.29
  4. Step 4: Simplify right side
    203,621.85x = 44,250,114,733.80
  5. Step 5: Solve for x
    x = 44,250,114,733.80/203,621.85
  6. Step 6: Final answer
    x = 217,315.16

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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.