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Finding the Fourth Proportional to 353,873.76, 488,351.36 and 192,728.69

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Solution

The fourth proportional to 353,873.76, 488,351.36 and 192,728.69 is: 265,968.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,873.76 : 488,351.36 = 192,728.69 : x
  2. Step 2: Convert to fraction form
    353,873.76/488,351.36 = 192,728.69/x
  3. Step 3: Cross multiply
    353,873.76x = 488,351.36 × 192,728.69
  4. Step 4: Simplify right side
    353,873.76x = 94,119,314,467.12
  5. Step 5: Solve for x
    x = 94,119,314,467.12/353,873.76
  6. Step 6: Final answer
    x = 265,968.62

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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.