Home / 305,341.26-421,377.69-169,370.77

Finding the Fourth Proportional to 305,341.26, 421,377.69 and 169,370.77

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Solution

The fourth proportional to 305,341.26, 421,377.69 and 169,370.77 is: 233,735.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,341.26 : 421,377.69 = 169,370.77 : x
  2. Step 2: Convert to fraction form
    305,341.26/421,377.69 = 169,370.77/x
  3. Step 3: Cross multiply
    305,341.26x = 421,377.69 × 169,370.77
  4. Step 4: Simplify right side
    305,341.26x = 71,369,063,816.12
  5. Step 5: Solve for x
    x = 71,369,063,816.12/305,341.26
  6. Step 6: Final answer
    x = 233,735.41

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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.