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Finding the Fourth Proportional to 353,805.72, 488,260.62 and 192,669.54

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Solution

The fourth proportional to 353,805.72, 488,260.62 and 192,669.54 is: 265,888.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,805.72 : 488,260.62 = 192,669.54 : x
  2. Step 2: Convert to fraction form
    353,805.72/488,260.62 = 192,669.54/x
  3. Step 3: Cross multiply
    353,805.72x = 488,260.62 × 192,669.54
  4. Step 4: Simplify right side
    353,805.72x = 94,072,949,055.51
  5. Step 5: Solve for x
    x = 94,072,949,055.51/353,805.72
  6. Step 6: Final answer
    x = 265,888.72

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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.