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Finding the Fourth Proportional to 305,583.68, 421,697.38 and 169,617.24

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Solution

The fourth proportional to 305,583.68, 421,697.38 and 169,617.24 is: 234,067.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,583.68 : 421,697.38 = 169,617.24 : x
  2. Step 2: Convert to fraction form
    305,583.68/421,697.38 = 169,617.24/x
  3. Step 3: Cross multiply
    305,583.68x = 421,697.38 × 169,617.24
  4. Step 4: Simplify right side
    305,583.68x = 71,527,145,710.83
  5. Step 5: Solve for x
    x = 71,527,145,710.83/305,583.68
  6. Step 6: Final answer
    x = 234,067.30

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1.5x scale

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.