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Finding the Fourth Proportional to 303,614.10, 455,421.15 and 269,496.90

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Solution

The fourth proportional to 303,614.10, 455,421.15 and 269,496.90 is: 404,245.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,614.10 : 455,421.15 = 269,496.90 : x
  2. Step 2: Convert to fraction form
    303,614.10/455,421.15 = 269,496.90/x
  3. Step 3: Cross multiply
    303,614.10x = 455,421.15 × 269,496.90
  4. Step 4: Simplify right side
    303,614.10x = 122,734,588,119.44
  5. Step 5: Solve for x
    x = 122,734,588,119.44/303,614.10
  6. Step 6: Final answer
    x = 404,245.35

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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.