Home / 303,921.05-455,280.15-266,523.35

Finding the Fourth Proportional to 303,921.05, 455,280.15 and 266,523.35

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Solution

The fourth proportional to 303,921.05, 455,280.15 and 266,523.35 is: 399,257.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,921.05 : 455,280.15 = 266,523.35 : x
  2. Step 2: Convert to fraction form
    303,921.05/455,280.15 = 266,523.35/x
  3. Step 3: Cross multiply
    303,921.05x = 455,280.15 × 266,523.35
  4. Step 4: Simplify right side
    303,921.05x = 121,342,790,766.50
  5. Step 5: Solve for x
    x = 121,342,790,766.50/303,921.05
  6. Step 6: Final answer
    x = 399,257.61

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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.