Home / 320,974.99-442,940.06-177,731.96

Finding the Fourth Proportional to 320,974.99, 442,940.06 and 177,731.96

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Solution

The fourth proportional to 320,974.99, 442,940.06 and 177,731.96 is: 245,267.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,974.99 : 442,940.06 = 177,731.96 : x
  2. Step 2: Convert to fraction form
    320,974.99/442,940.06 = 177,731.96/x
  3. Step 3: Cross multiply
    320,974.99x = 442,940.06 × 177,731.96
  4. Step 4: Simplify right side
    320,974.99x = 78,724,605,026.32
  5. Step 5: Solve for x
    x = 78,724,605,026.32/320,974.99
  6. Step 6: Final answer
    x = 245,267.10

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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.