Home / 311,514.20-429,872.10-184,230.80

Finding the Fourth Proportional to 311,514.20, 429,872.10 and 184,230.80

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Solution

The fourth proportional to 311,514.20, 429,872.10 and 184,230.80 is: 254,228.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,514.20 : 429,872.10 = 184,230.80 : x
  2. Step 2: Convert to fraction form
    311,514.20/429,872.10 = 184,230.80/x
  3. Step 3: Cross multiply
    311,514.20x = 429,872.10 × 184,230.80
  4. Step 4: Simplify right side
    311,514.20x = 79,195,680,880.68
  5. Step 5: Solve for x
    x = 79,195,680,880.68/311,514.20
  6. Step 6: Final answer
    x = 254,228.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.