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Finding the Fourth Proportional to 279,040.26, 384,392.19 and 202,333.93

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Solution

The fourth proportional to 279,040.26, 384,392.19 and 202,333.93 is: 278,725.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,040.26 : 384,392.19 = 202,333.93 : x
  2. Step 2: Convert to fraction form
    279,040.26/384,392.19 = 202,333.93/x
  3. Step 3: Cross multiply
    279,040.26x = 384,392.19 × 202,333.93
  4. Step 4: Simplify right side
    279,040.26x = 77,775,582,464.01
  5. Step 5: Solve for x
    x = 77,775,582,464.01/279,040.26
  6. Step 6: Final answer
    x = 278,725.31

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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.