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Finding the Fourth Proportional to 225,356.22, 310,991.04 and 134,707.78

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Solution

The fourth proportional to 225,356.22, 310,991.04 and 134,707.78 is: 185,896.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,356.22 : 310,991.04 = 134,707.78 : x
  2. Step 2: Convert to fraction form
    225,356.22/310,991.04 = 134,707.78/x
  3. Step 3: Cross multiply
    225,356.22x = 310,991.04 × 134,707.78
  4. Step 4: Simplify right side
    225,356.22x = 41,892,912,598.29
  5. Step 5: Solve for x
    x = 41,892,912,598.29/225,356.22
  6. Step 6: Final answer
    x = 185,896.41

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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.