Home / 287,664.62-396,929.76-166,756.38

Finding the Fourth Proportional to 287,664.62, 396,929.76 and 166,756.38

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Solution

The fourth proportional to 287,664.62, 396,929.76 and 166,756.38 is: 230,096.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,664.62 : 396,929.76 = 166,756.38 : x
  2. Step 2: Convert to fraction form
    287,664.62/396,929.76 = 166,756.38/x
  3. Step 3: Cross multiply
    287,664.62x = 396,929.76 × 166,756.38
  4. Step 4: Simplify right side
    287,664.62x = 66,190,569,891.87
  5. Step 5: Solve for x
    x = 66,190,569,891.87/287,664.62
  6. Step 6: Final answer
    x = 230,096.32

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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.