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Finding the Fourth Proportional to 342,653.75, 513,418.83 and 242,634.39

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Solution

The fourth proportional to 342,653.75, 513,418.83 and 242,634.39 is: 363,553.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,653.75 : 513,418.83 = 242,634.39 : x
  2. Step 2: Convert to fraction form
    342,653.75/513,418.83 = 242,634.39/x
  3. Step 3: Cross multiply
    342,653.75x = 513,418.83 × 242,634.39
  4. Step 4: Simplify right side
    342,653.75x = 124,573,064,631.56
  5. Step 5: Solve for x
    x = 124,573,064,631.56/342,653.75
  6. Step 6: Final answer
    x = 363,553.78

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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.