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Finding the Fourth Proportional to 353,118.64, 487,309.27 and 191,974.31

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Solution

The fourth proportional to 353,118.64, 487,309.27 and 191,974.31 is: 264,927.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,118.64 : 487,309.27 = 191,974.31 : x
  2. Step 2: Convert to fraction form
    353,118.64/487,309.27 = 191,974.31/x
  3. Step 3: Cross multiply
    353,118.64x = 487,309.27 × 191,974.31
  4. Step 4: Simplify right side
    353,118.64x = 93,550,858,308.32
  5. Step 5: Solve for x
    x = 93,550,858,308.32/353,118.64
  6. Step 6: Final answer
    x = 264,927.56

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.