Home / 311,986.92-430,540.54-168,746.62

Finding the Fourth Proportional to 311,986.92, 430,540.54 and 168,746.62

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Solution

The fourth proportional to 311,986.92, 430,540.54 and 168,746.62 is: 232,869.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,986.92 : 430,540.54 = 168,746.62 : x
  2. Step 2: Convert to fraction form
    311,986.92/430,540.54 = 168,746.62/x
  3. Step 3: Cross multiply
    311,986.92x = 430,540.54 × 168,746.62
  4. Step 4: Simplify right side
    311,986.92x = 72,652,260,897.97
  5. Step 5: Solve for x
    x = 72,652,260,897.97/311,986.92
  6. Step 6: Final answer
    x = 232,869.57

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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.