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Finding the Fourth Proportional to 270,183.84, 405,213.79 and 101,721.66

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Solution

The fourth proportional to 270,183.84, 405,213.79 and 101,721.66 is: 152,559.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,183.84 : 405,213.79 = 101,721.66 : x
  2. Step 2: Convert to fraction form
    270,183.84/405,213.79 = 101,721.66/x
  3. Step 3: Cross multiply
    270,183.84x = 405,213.79 × 101,721.66
  4. Step 4: Simplify right side
    270,183.84x = 41,219,019,373.69
  5. Step 5: Solve for x
    x = 41,219,019,373.69/270,183.84
  6. Step 6: Final answer
    x = 152,559.16

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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.