Home / 320,974.48-442,939.37-177,731.45

Finding the Fourth Proportional to 320,974.48, 442,939.37 and 177,731.45

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Solution

The fourth proportional to 320,974.48, 442,939.37 and 177,731.45 is: 245,266.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,974.48 : 442,939.37 = 177,731.45 : x
  2. Step 2: Convert to fraction form
    320,974.48/442,939.37 = 177,731.45/x
  3. Step 3: Cross multiply
    320,974.48x = 442,939.37 × 177,731.45
  4. Step 4: Simplify right side
    320,974.48x = 78,724,256,492.19
  5. Step 5: Solve for x
    x = 78,724,256,492.19/320,974.48
  6. Step 6: Final answer
    x = 245,266.40

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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.