Home / 311,423.48-429,764.38-168,183.51

Finding the Fourth Proportional to 311,423.48, 429,764.38 and 168,183.51

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Solution

The fourth proportional to 311,423.48, 429,764.38 and 168,183.51 is: 232,093.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,423.48 : 429,764.38 = 168,183.51 : x
  2. Step 2: Convert to fraction form
    311,423.48/429,764.38 = 168,183.51/x
  3. Step 3: Cross multiply
    311,423.48x = 429,764.38 × 168,183.51
  4. Step 4: Simplify right side
    311,423.48x = 72,279,280,815.33
  5. Step 5: Solve for x
    x = 72,279,280,815.33/311,423.48
  6. Step 6: Final answer
    x = 232,093.22

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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.