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Finding the Fourth Proportional to 353,979.48, 488,479.37 and 192,830.39

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Solution

The fourth proportional to 353,979.48, 488,479.37 and 192,830.39 is: 266,099.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,979.48 : 488,479.37 = 192,830.39 : x
  2. Step 2: Convert to fraction form
    353,979.48/488,479.37 = 192,830.39/x
  3. Step 3: Cross multiply
    353,979.48x = 488,479.37 × 192,830.39
  4. Step 4: Simplify right side
    353,979.48x = 94,193,664,017.51
  5. Step 5: Solve for x
    x = 94,193,664,017.51/353,979.48
  6. Step 6: Final answer
    x = 266,099.22

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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.