Home / 273,921.60-378,007.20-153,065.28

Finding the Fourth Proportional to 273,921.60, 378,007.20 and 153,065.28

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Solution

The fourth proportional to 273,921.60, 378,007.20 and 153,065.28 is: 211,227.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,921.60 : 378,007.20 = 153,065.28 : x
  2. Step 2: Convert to fraction form
    273,921.60/378,007.20 = 153,065.28/x
  3. Step 3: Cross multiply
    273,921.60x = 378,007.20 × 153,065.28
  4. Step 4: Simplify right side
    273,921.60x = 57,859,777,910.02
  5. Step 5: Solve for x
    x = 57,859,777,910.02/273,921.60
  6. Step 6: Final answer
    x = 211,227.51

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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.