Home / 311,965.96-430,513.05-168,725.97

Finding the Fourth Proportional to 311,965.96, 430,513.05 and 168,725.97

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Solution

The fourth proportional to 311,965.96, 430,513.05 and 168,725.97 is: 232,841.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,965.96 : 430,513.05 = 168,725.97 : x
  2. Step 2: Convert to fraction form
    311,965.96/430,513.05 = 168,725.97/x
  3. Step 3: Cross multiply
    311,965.96x = 430,513.05 × 168,725.97
  4. Step 4: Simplify right side
    311,965.96x = 72,638,731,958.91
  5. Step 5: Solve for x
    x = 72,638,731,958.91/311,965.96
  6. Step 6: Final answer
    x = 232,841.85

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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.