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Finding the Fourth Proportional to 295.06, 407.13 and 189.95

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Solution

The fourth proportional to 295.06, 407.13 and 189.95 is: 262.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    295.06 : 407.13 = 189.95 : x
  2. Step 2: Convert to fraction form
    295.06/407.13 = 189.95/x
  3. Step 3: Cross multiply
    295.06x = 407.13 × 189.95
  4. Step 4: Simplify right side
    295.06x = 77,334.34
  5. Step 5: Solve for x
    x = 77,334.34/295.06
  6. Step 6: Final answer
    x = 262.10

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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.