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Finding the Fourth Proportional to 353,467.54, 487,787.31 and 192,323.71

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Solution

The fourth proportional to 353,467.54, 487,787.31 and 192,323.71 is: 265,407.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,467.54 : 487,787.31 = 192,323.71 : x
  2. Step 2: Convert to fraction form
    353,467.54/487,787.31 = 192,323.71/x
  3. Step 3: Cross multiply
    353,467.54x = 487,787.31 × 192,323.71
  4. Step 4: Simplify right side
    353,467.54x = 93,813,065,150.12
  5. Step 5: Solve for x
    x = 93,813,065,150.12/353,467.54
  6. Step 6: Final answer
    x = 265,407.87

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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.