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Finding the Fourth Proportional to 353,333, 487,599.54 and 202,517.48

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Solution

The fourth proportional to 353,333, 487,599.54 and 202,517.48 is: 279,474.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,333 : 487,599.54 = 202,517.48 : x
  2. Step 2: Convert to fraction form
    353,333/487,599.54 = 202,517.48/x
  3. Step 3: Cross multiply
    353,333x = 487,599.54 × 202,517.48
  4. Step 4: Simplify right side
    353,333x = 98,747,430,089.96
  5. Step 5: Solve for x
    x = 98,747,430,089.96/353,333
  6. Step 6: Final answer
    x = 279,474.12

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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.