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Finding the Fourth Proportional to 305,584.45, 421,700.51 and 169,620.01

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Solution

The fourth proportional to 305,584.45, 421,700.51 and 169,620.01 is: 234,072.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,584.45 : 421,700.51 = 169,620.01 : x
  2. Step 2: Convert to fraction form
    305,584.45/421,700.51 = 169,620.01/x
  3. Step 3: Cross multiply
    305,584.45x = 421,700.51 × 169,620.01
  4. Step 4: Simplify right side
    305,584.45x = 71,528,844,093.00
  5. Step 5: Solve for x
    x = 71,528,844,093.00/305,584.45
  6. Step 6: Final answer
    x = 234,072.27

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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.