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Finding the Fourth Proportional to 847.33, 1,270.98 and 231.07

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Solution

The fourth proportional to 847.33, 1,270.98 and 231.07 is: 346.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    847.33 : 1,270.98 = 231.07 : x
  2. Step 2: Convert to fraction form
    847.33/1,270.98 = 231.07/x
  3. Step 3: Cross multiply
    847.33x = 1,270.98 × 231.07
  4. Step 4: Simplify right side
    847.33x = 293,684.19
  5. Step 5: Solve for x
    x = 293,684.19/847.33
  6. Step 6: Final answer
    x = 346.60

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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.