Home / 213,965.19-320,979.08-64,217.32

Finding the Fourth Proportional to 213,965.19, 320,979.08 and 64,217.32

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Solution

The fourth proportional to 213,965.19, 320,979.08 and 64,217.32 is: 96,335.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,965.19 : 320,979.08 = 64,217.32 : x
  2. Step 2: Convert to fraction form
    213,965.19/320,979.08 = 64,217.32/x
  3. Step 3: Cross multiply
    213,965.19x = 320,979.08 × 64,217.32
  4. Step 4: Simplify right side
    213,965.19x = 20,612,415,972.58
  5. Step 5: Solve for x
    x = 20,612,415,972.58/213,965.19
  6. Step 6: Final answer
    x = 96,335.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.