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Finding the Fourth Proportional to 305,568.65, 421,676.69 and 169,602.26

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Solution

The fourth proportional to 305,568.65, 421,676.69 and 169,602.26 is: 234,046.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,568.65 : 421,676.69 = 169,602.26 : x
  2. Step 2: Convert to fraction form
    305,568.65/421,676.69 = 169,602.26/x
  3. Step 3: Cross multiply
    305,568.65x = 421,676.69 × 169,602.26
  4. Step 4: Simplify right side
    305,568.65x = 71,517,316,656.92
  5. Step 5: Solve for x
    x = 71,517,316,656.92/305,568.65
  6. Step 6: Final answer
    x = 234,046.64

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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.