Home / 305,382.29-421,428.62-169,418.93

Finding the Fourth Proportional to 305,382.29, 421,428.62 and 169,418.93

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Solution

The fourth proportional to 305,382.29, 421,428.62 and 169,418.93 is: 233,798.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,382.29 : 421,428.62 = 169,418.93 : x
  2. Step 2: Convert to fraction form
    305,382.29/421,428.62 = 169,418.93/x
  3. Step 3: Cross multiply
    305,382.29x = 421,428.62 × 169,418.93
  4. Step 4: Simplify right side
    305,382.29x = 71,397,984,188.18
  5. Step 5: Solve for x
    x = 71,397,984,188.18/305,382.29
  6. Step 6: Final answer
    x = 233,798.71

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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.