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Finding the Fourth Proportional to 296,908.79, 445,382.21 and 104,759.64

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Solution

The fourth proportional to 296,908.79, 445,382.21 and 104,759.64 is: 157,146.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,908.79 : 445,382.21 = 104,759.64 : x
  2. Step 2: Convert to fraction form
    296,908.79/445,382.21 = 104,759.64/x
  3. Step 3: Cross multiply
    296,908.79x = 445,382.21 × 104,759.64
  4. Step 4: Simplify right side
    296,908.79x = 46,658,080,243.90
  5. Step 5: Solve for x
    x = 46,658,080,243.90/296,908.79
  6. Step 6: Final answer
    x = 157,146.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.