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Finding the Fourth Proportional to 305,520.99, 421,621.74 and 184,743

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Solution

The fourth proportional to 305,520.99, 421,621.74 and 184,743 is: 254,947.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,520.99 : 421,621.74 = 184,743 : x
  2. Step 2: Convert to fraction form
    305,520.99/421,621.74 = 184,743/x
  3. Step 3: Cross multiply
    305,520.99x = 421,621.74 × 184,743
  4. Step 4: Simplify right side
    305,520.99x = 77,891,665,112.82
  5. Step 5: Solve for x
    x = 77,891,665,112.82/305,520.99
  6. Step 6: Final answer
    x = 254,947.02

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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.