Home / 320,880.05-442,912.96-185,004.70

Finding the Fourth Proportional to 320,880.05, 442,912.96 and 185,004.70

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Solution

The fourth proportional to 320,880.05, 442,912.96 and 185,004.70 is: 255,363.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,880.05 : 442,912.96 = 185,004.70 : x
  2. Step 2: Convert to fraction form
    320,880.05/442,912.96 = 185,004.70/x
  3. Step 3: Cross multiply
    320,880.05x = 442,912.96 × 185,004.70
  4. Step 4: Simplify right side
    320,880.05x = 81,940,977,721.12
  5. Step 5: Solve for x
    x = 81,940,977,721.12/320,880.05
  6. Step 6: Final answer
    x = 255,363.27

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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.