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Finding the Fourth Proportional to 274,572.22, 378,955.01 and 188,460.46

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Solution

The fourth proportional to 274,572.22, 378,955.01 and 188,460.46 is: 260,106.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,572.22 : 378,955.01 = 188,460.46 : x
  2. Step 2: Convert to fraction form
    274,572.22/378,955.01 = 188,460.46/x
  3. Step 3: Cross multiply
    274,572.22x = 378,955.01 × 188,460.46
  4. Step 4: Simplify right side
    274,572.22x = 71,418,035,503.90
  5. Step 5: Solve for x
    x = 71,418,035,503.90/274,572.22
  6. Step 6: Final answer
    x = 260,106.56

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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.