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Finding the Fourth Proportional to 302, 416.88 and 295.12

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Solution

The fourth proportional to 302, 416.88 and 295.12 is: 407.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    302 : 416.88 = 295.12 : x
  2. Step 2: Convert to fraction form
    302/416.88 = 295.12/x
  3. Step 3: Cross multiply
    302x = 416.88 × 295.12
  4. Step 4: Simplify right side
    302x = 123,029.63
  5. Step 5: Solve for x
    x = 123,029.63/302
  6. Step 6: Final answer
    x = 407.38

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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.