Home / 213,490.28-320,229.92-69,395.32

Finding the Fourth Proportional to 213,490.28, 320,229.92 and 69,395.32

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Solution

The fourth proportional to 213,490.28, 320,229.92 and 69,395.32 is: 104,091.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,490.28 : 320,229.92 = 69,395.32 : x
  2. Step 2: Convert to fraction form
    213,490.28/320,229.92 = 69,395.32/x
  3. Step 3: Cross multiply
    213,490.28x = 320,229.92 × 69,395.32
  4. Step 4: Simplify right side
    213,490.28x = 22,222,457,771.97
  5. Step 5: Solve for x
    x = 22,222,457,771.97/213,490.28
  6. Step 6: Final answer
    x = 104,091.19

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1.5x scale

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.