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Finding the Fourth Proportional to 308.51, 425.64 and 295.03

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Solution

The fourth proportional to 308.51, 425.64 and 295.03 is: 407.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    308.51 : 425.64 = 295.03 : x
  2. Step 2: Convert to fraction form
    308.51/425.64 = 295.03/x
  3. Step 3: Cross multiply
    308.51x = 425.64 × 295.03
  4. Step 4: Simplify right side
    308.51x = 125,576.57
  5. Step 5: Solve for x
    x = 125,576.57/308.51
  6. Step 6: Final answer
    x = 407.04

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Why These Related Problems?

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