Home / 305,150.82-421,132.95-169,198.26

Finding the Fourth Proportional to 305,150.82, 421,132.95 and 169,198.26

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Solution

The fourth proportional to 305,150.82, 421,132.95 and 169,198.26 is: 233,507.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,150.82 : 421,132.95 = 169,198.26 : x
  2. Step 2: Convert to fraction form
    305,150.82/421,132.95 = 169,198.26/x
  3. Step 3: Cross multiply
    305,150.82x = 421,132.95 × 169,198.26
  4. Step 4: Simplify right side
    305,150.82x = 71,254,962,368.67
  5. Step 5: Solve for x
    x = 71,254,962,368.67/305,150.82
  6. Step 6: Final answer
    x = 233,507.36

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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.