Home / 274,238.06-378,447.45-153,378.86

Finding the Fourth Proportional to 274,238.06, 378,447.45 and 153,378.86

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Solution

The fourth proportional to 274,238.06, 378,447.45 and 153,378.86 is: 211,662.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,238.06 : 378,447.45 = 153,378.86 : x
  2. Step 2: Convert to fraction form
    274,238.06/378,447.45 = 153,378.86/x
  3. Step 3: Cross multiply
    274,238.06x = 378,447.45 × 153,378.86
  4. Step 4: Simplify right side
    274,238.06x = 58,045,838,450.91
  5. Step 5: Solve for x
    x = 58,045,838,450.91/274,238.06
  6. Step 6: Final answer
    x = 211,662.23

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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.