Home / 305,581.66-421,694.64-169,615.24

Finding the Fourth Proportional to 305,581.66, 421,694.64 and 169,615.24

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Solution

The fourth proportional to 305,581.66, 421,694.64 and 169,615.24 is: 234,064.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,581.66 : 421,694.64 = 169,615.24 : x
  2. Step 2: Convert to fraction form
    305,581.66/421,694.64 = 169,615.24/x
  3. Step 3: Cross multiply
    305,581.66x = 421,694.64 × 169,615.24
  4. Step 4: Simplify right side
    305,581.66x = 71,525,837,570.31
  5. Step 5: Solve for x
    x = 71,525,837,570.31/305,581.66
  6. Step 6: Final answer
    x = 234,064.56

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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.