Home / 305,339.75-421,375.61-169,369.27

Finding the Fourth Proportional to 305,339.75, 421,375.61 and 169,369.27

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Solution

The fourth proportional to 305,339.75, 421,375.61 and 169,369.27 is: 233,733.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,339.75 : 421,375.61 = 169,369.27 : x
  2. Step 2: Convert to fraction form
    305,339.75/421,375.61 = 169,369.27/x
  3. Step 3: Cross multiply
    305,339.75x = 421,375.61 × 169,369.27
  4. Step 4: Simplify right side
    305,339.75x = 71,368,080,411.65
  5. Step 5: Solve for x
    x = 71,368,080,411.65/305,339.75
  6. Step 6: Final answer
    x = 233,733.34

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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.