Home / 305,049.30-457,553.87-105,372.54

Finding the Fourth Proportional to 305,049.30, 457,553.87 and 105,372.54

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Solution

The fourth proportional to 305,049.30, 457,553.87 and 105,372.54 is: 158,051.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,049.30 : 457,553.87 = 105,372.54 : x
  2. Step 2: Convert to fraction form
    305,049.30/457,553.87 = 105,372.54/x
  3. Step 3: Cross multiply
    305,049.30x = 457,553.87 × 105,372.54
  4. Step 4: Simplify right side
    305,049.30x = 48,213,612,941.87
  5. Step 5: Solve for x
    x = 48,213,612,941.87/305,049.30
  6. Step 6: Final answer
    x = 158,051.87

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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.