Home / 320,370.12-442,076.94-177,107.04

Finding the Fourth Proportional to 320,370.12, 442,076.94 and 177,107.04

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Solution

The fourth proportional to 320,370.12, 442,076.94 and 177,107.04 is: 244,389.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,370.12 : 442,076.94 = 177,107.04 : x
  2. Step 2: Convert to fraction form
    320,370.12/442,076.94 = 177,107.04/x
  3. Step 3: Cross multiply
    320,370.12x = 442,076.94 × 177,107.04
  4. Step 4: Simplify right side
    320,370.12x = 78,294,938,295.66
  5. Step 5: Solve for x
    x = 78,294,938,295.66/320,370.12
  6. Step 6: Final answer
    x = 244,389.02

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1.5x scale

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.