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Finding the Fourth Proportional to 998.41, 1,497.09 and 340.06

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Solution

The fourth proportional to 998.41, 1,497.09 and 340.06 is: 509.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    998.41 : 1,497.09 = 340.06 : x
  2. Step 2: Convert to fraction form
    998.41/1,497.09 = 340.06/x
  3. Step 3: Cross multiply
    998.41x = 1,497.09 × 340.06
  4. Step 4: Simplify right side
    998.41x = 509,100.43
  5. Step 5: Solve for x
    x = 509,100.43/998.41
  6. Step 6: Final answer
    x = 509.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.