Home / 287,936.65-397,349.87-158,876.29

Finding the Fourth Proportional to 287,936.65, 397,349.87 and 158,876.29

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Solution

The fourth proportional to 287,936.65, 397,349.87 and 158,876.29 is: 219,247.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,936.65 : 397,349.87 = 158,876.29 : x
  2. Step 2: Convert to fraction form
    287,936.65/397,349.87 = 158,876.29/x
  3. Step 3: Cross multiply
    287,936.65x = 397,349.87 × 158,876.29
  4. Step 4: Simplify right side
    287,936.65x = 63,129,472,383.20
  5. Step 5: Solve for x
    x = 63,129,472,383.20/287,936.65
  6. Step 6: Final answer
    x = 219,247.78

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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.