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Finding the Fourth Proportional to 274,450.40, 412,021.20 and 148,191.20

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Solution

The fourth proportional to 274,450.40, 412,021.20 and 148,191.20 is: 222,473.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,450.40 : 412,021.20 = 148,191.20 : x
  2. Step 2: Convert to fraction form
    274,450.40/412,021.20 = 148,191.20/x
  3. Step 3: Cross multiply
    274,450.40x = 412,021.20 × 148,191.20
  4. Step 4: Simplify right side
    274,450.40x = 61,057,916,053.44
  5. Step 5: Solve for x
    x = 61,057,916,053.44/274,450.40
  6. Step 6: Final answer
    x = 222,473.41

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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.