Home / 312,207.75-430,845.89-168,967.76

Finding the Fourth Proportional to 312,207.75, 430,845.89 and 168,967.76

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Solution

The fourth proportional to 312,207.75, 430,845.89 and 168,967.76 is: 233,175.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,207.75 : 430,845.89 = 168,967.76 : x
  2. Step 2: Convert to fraction form
    312,207.75/430,845.89 = 168,967.76/x
  3. Step 3: Cross multiply
    312,207.75x = 430,845.89 × 168,967.76
  4. Step 4: Simplify right side
    312,207.75x = 72,799,061,939.44
  5. Step 5: Solve for x
    x = 72,799,061,939.44/312,207.75
  6. Step 6: Final answer
    x = 233,175.06

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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.