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Finding the Fourth Proportional to 298,981.98, 412,361.55 and 191,562.48

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Solution

The fourth proportional to 298,981.98, 412,361.55 and 191,562.48 is: 264,206.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,981.98 : 412,361.55 = 191,562.48 : x
  2. Step 2: Convert to fraction form
    298,981.98/412,361.55 = 191,562.48/x
  3. Step 3: Cross multiply
    298,981.98x = 412,361.55 × 191,562.48
  4. Step 4: Simplify right side
    298,981.98x = 78,993,001,174.64
  5. Step 5: Solve for x
    x = 78,993,001,174.64/298,981.98
  6. Step 6: Final answer
    x = 264,206.56

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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.