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Finding the Fourth Proportional to 353,493.62, 487,818.90 and 192,349.29

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Solution

The fourth proportional to 353,493.62, 487,818.90 and 192,349.29 is: 265,440.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,493.62 : 487,818.90 = 192,349.29 : x
  2. Step 2: Convert to fraction form
    353,493.62/487,818.90 = 192,349.29/x
  3. Step 3: Cross multiply
    353,493.62x = 487,818.90 × 192,349.29
  4. Step 4: Simplify right side
    353,493.62x = 93,831,619,063.58
  5. Step 5: Solve for x
    x = 93,831,619,063.58/353,493.62
  6. Step 6: Final answer
    x = 265,440.77

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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.