Home / 287,512.17-396,769.52-158,455.37

Finding the Fourth Proportional to 287,512.17, 396,769.52 and 158,455.37

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Solution

The fourth proportional to 287,512.17, 396,769.52 and 158,455.37 is: 218,669.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,512.17 : 396,769.52 = 158,455.37 : x
  2. Step 2: Convert to fraction form
    287,512.17/396,769.52 = 158,455.37/x
  3. Step 3: Cross multiply
    287,512.17x = 396,769.52 × 158,455.37
  4. Step 4: Simplify right side
    287,512.17x = 62,870,258,320.20
  5. Step 5: Solve for x
    x = 62,870,258,320.20/287,512.17
  6. Step 6: Final answer
    x = 218,669.90

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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.