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Finding the Fourth Proportional to 353,878, 488,344.35 and 192,735.88

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Solution

The fourth proportional to 353,878, 488,344.35 and 192,735.88 is: 265,971.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,878 : 488,344.35 = 192,735.88 : x
  2. Step 2: Convert to fraction form
    353,878/488,344.35 = 192,735.88/x
  3. Step 3: Cross multiply
    353,878x = 488,344.35 × 192,735.88
  4. Step 4: Simplify right side
    353,878x = 94,121,478,040.28
  5. Step 5: Solve for x
    x = 94,121,478,040.28/353,878
  6. Step 6: Final answer
    x = 265,971.54

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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.