Home / 312,223.50-430,867.62-168,983.55

Finding the Fourth Proportional to 312,223.50, 430,867.62 and 168,983.55

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Solution

The fourth proportional to 312,223.50, 430,867.62 and 168,983.55 is: 233,196.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,223.50 : 430,867.62 = 168,983.55 : x
  2. Step 2: Convert to fraction form
    312,223.50/430,867.62 = 168,983.55/x
  3. Step 3: Cross multiply
    312,223.50x = 430,867.62 × 168,983.55
  4. Step 4: Simplify right side
    312,223.50x = 72,809,540,007.65
  5. Step 5: Solve for x
    x = 72,809,540,007.65/312,223.50
  6. Step 6: Final answer
    x = 233,196.86

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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.