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Finding the Fourth Proportional to 353,911.95, 488,394.36 and 192,766.50

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Solution

The fourth proportional to 353,911.95, 488,394.36 and 192,766.50 is: 266,015.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,911.95 : 488,394.36 = 192,766.50 : x
  2. Step 2: Convert to fraction form
    353,911.95/488,394.36 = 192,766.50/x
  3. Step 3: Cross multiply
    353,911.95x = 488,394.36 × 192,766.50
  4. Step 4: Simplify right side
    353,911.95x = 94,146,071,396.94
  5. Step 5: Solve for x
    x = 94,146,071,396.94/353,911.95
  6. Step 6: Final answer
    x = 266,015.52

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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.