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Finding the Fourth Proportional to 491,228.28, 736,842.32 and 136,242.26

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Solution

The fourth proportional to 491,228.28, 736,842.32 and 136,242.26 is: 204,363.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,228.28 : 736,842.32 = 136,242.26 : x
  2. Step 2: Convert to fraction form
    491,228.28/736,842.32 = 136,242.26/x
  3. Step 3: Cross multiply
    491,228.28x = 736,842.32 × 136,242.26
  4. Step 4: Simplify right side
    491,228.28x = 100,389,062,940.44
  5. Step 5: Solve for x
    x = 100,389,062,940.44/491,228.28
  6. Step 6: Final answer
    x = 204,363.36

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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.