Home / 311,922.66-430,451.10-168,680.64

Finding the Fourth Proportional to 311,922.66, 430,451.10 and 168,680.64

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Solution

The fourth proportional to 311,922.66, 430,451.10 and 168,680.64 is: 232,778.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,922.66 : 430,451.10 = 168,680.64 : x
  2. Step 2: Convert to fraction form
    311,922.66/430,451.10 = 168,680.64/x
  3. Step 3: Cross multiply
    311,922.66x = 430,451.10 × 168,680.64
  4. Step 4: Simplify right side
    311,922.66x = 72,608,767,036.70
  5. Step 5: Solve for x
    x = 72,608,767,036.70/311,922.66
  6. Step 6: Final answer
    x = 232,778.11

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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.