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Finding the Fourth Proportional to 303,007.55, 454,511.33 and 256,351.55

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Solution

The fourth proportional to 303,007.55, 454,511.33 and 256,351.55 is: 384,527.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,007.55 : 454,511.33 = 256,351.55 : x
  2. Step 2: Convert to fraction form
    303,007.55/454,511.33 = 256,351.55/x
  3. Step 3: Cross multiply
    303,007.55x = 454,511.33 × 256,351.55
  4. Step 4: Simplify right side
    303,007.55x = 116,514,682,656.30
  5. Step 5: Solve for x
    x = 116,514,682,656.30/303,007.55
  6. Step 6: Final answer
    x = 384,527.33

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Similar ratio
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1.5x scale

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.