Home / 209,321.11-288,890.72-203,621.48

Finding the Fourth Proportional to 209,321.11, 288,890.72 and 203,621.48

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Solution

The fourth proportional to 209,321.11, 288,890.72 and 203,621.48 is: 281,024.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,321.11 : 288,890.72 = 203,621.48 : x
  2. Step 2: Convert to fraction form
    209,321.11/288,890.72 = 203,621.48/x
  3. Step 3: Cross multiply
    209,321.11x = 288,890.72 × 203,621.48
  4. Step 4: Simplify right side
    209,321.11x = 58,824,355,349.03
  5. Step 5: Solve for x
    x = 58,824,355,349.03/209,321.11
  6. Step 6: Final answer
    x = 281,024.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.