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Finding the Fourth Proportional to 353,620.62, 487,981.53 and 192,475.98

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Solution

The fourth proportional to 353,620.62, 487,981.53 and 192,475.98 is: 265,608.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,620.62 : 487,981.53 = 192,475.98 : x
  2. Step 2: Convert to fraction form
    353,620.62/487,981.53 = 192,475.98/x
  3. Step 3: Cross multiply
    353,620.62x = 487,981.53 × 192,475.98
  4. Step 4: Simplify right side
    353,620.62x = 93,924,723,208.65
  5. Step 5: Solve for x
    x = 93,924,723,208.65/353,620.62
  6. Step 6: Final answer
    x = 265,608.73

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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.