Home / 287,374.05-396,560.57-158,287.37

Finding the Fourth Proportional to 287,374.05, 396,560.57 and 158,287.37

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Solution

The fourth proportional to 287,374.05, 396,560.57 and 158,287.37 is: 218,427.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,374.05 : 396,560.57 = 158,287.37 : x
  2. Step 2: Convert to fraction form
    287,374.05/396,560.57 = 158,287.37/x
  3. Step 3: Cross multiply
    287,374.05x = 396,560.57 × 158,287.37
  4. Step 4: Simplify right side
    287,374.05x = 62,770,526,896.76
  5. Step 5: Solve for x
    x = 62,770,526,896.76/287,374.05
  6. Step 6: Final answer
    x = 218,427.96

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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.