Home / 219,331.38-328,930.08-92,969.25

Finding the Fourth Proportional to 219,331.38, 328,930.08 and 92,969.25

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Solution

The fourth proportional to 219,331.38, 328,930.08 and 92,969.25 is: 139,425.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,331.38 : 328,930.08 = 92,969.25 : x
  2. Step 2: Convert to fraction form
    219,331.38/328,930.08 = 92,969.25/x
  3. Step 3: Cross multiply
    219,331.38x = 328,930.08 × 92,969.25
  4. Step 4: Simplify right side
    219,331.38x = 30,580,382,840.04
  5. Step 5: Solve for x
    x = 30,580,382,840.04/219,331.38
  6. Step 6: Final answer
    x = 139,425.48

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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.