Home / 287,905.30-397,180.94-166,976.48

Finding the Fourth Proportional to 287,905.30, 397,180.94 and 166,976.48

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Solution

The fourth proportional to 287,905.30, 397,180.94 and 166,976.48 is: 230,353.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,905.30 : 397,180.94 = 166,976.48 : x
  2. Step 2: Convert to fraction form
    287,905.30/397,180.94 = 166,976.48/x
  3. Step 3: Cross multiply
    287,905.30x = 397,180.94 × 166,976.48
  4. Step 4: Simplify right side
    287,905.30x = 66,319,875,442.36
  5. Step 5: Solve for x
    x = 66,319,875,442.36/287,905.30
  6. Step 6: Final answer
    x = 230,353.09

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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.