Home / 203,487.90-305,231.85-181,715.10

Finding the Fourth Proportional to 203,487.90, 305,231.85 and 181,715.10

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Solution

The fourth proportional to 203,487.90, 305,231.85 and 181,715.10 is: 272,572.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,487.90 : 305,231.85 = 181,715.10 : x
  2. Step 2: Convert to fraction form
    203,487.90/305,231.85 = 181,715.10/x
  3. Step 3: Cross multiply
    203,487.90x = 305,231.85 × 181,715.10
  4. Step 4: Simplify right side
    203,487.90x = 55,465,236,145.94
  5. Step 5: Solve for x
    x = 55,465,236,145.94/203,487.90
  6. Step 6: Final answer
    x = 272,572.65

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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.