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Finding the Fourth Proportional to 286,694.72, 395,580.96 and 167,439.68

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Solution

The fourth proportional to 286,694.72, 395,580.96 and 167,439.68 is: 231,033.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,694.72 : 395,580.96 = 167,439.68 : x
  2. Step 2: Convert to fraction form
    286,694.72/395,580.96 = 167,439.68/x
  3. Step 3: Cross multiply
    286,694.72x = 395,580.96 × 167,439.68
  4. Step 4: Simplify right side
    286,694.72x = 66,235,949,356.49
  5. Step 5: Solve for x
    x = 66,235,949,356.49/286,694.72
  6. Step 6: Final answer
    x = 231,033.03

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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.