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Finding the Fourth Proportional to 295.22, 407.91 and 258.32

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Solution

The fourth proportional to 295.22, 407.91 and 258.32 is: 356.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    295.22 : 407.91 = 258.32 : x
  2. Step 2: Convert to fraction form
    295.22/407.91 = 258.32/x
  3. Step 3: Cross multiply
    295.22x = 407.91 × 258.32
  4. Step 4: Simplify right side
    295.22x = 105,371.31
  5. Step 5: Solve for x
    x = 105,371.31/295.22
  6. Step 6: Final answer
    x = 356.92

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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.