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Finding the Fourth Proportional to 841.24, 1,261.94 and 293.56

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Solution

The fourth proportional to 841.24, 1,261.94 and 293.56 is: 440.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    841.24 : 1,261.94 = 293.56 : x
  2. Step 2: Convert to fraction form
    841.24/1,261.94 = 293.56/x
  3. Step 3: Cross multiply
    841.24x = 1,261.94 × 293.56
  4. Step 4: Simplify right side
    841.24x = 370,455.11
  5. Step 5: Solve for x
    x = 370,455.11/841.24
  6. Step 6: Final answer
    x = 440.37

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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.