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Finding the Fourth Proportional to 374.33, 561.29 and 168.95

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Solution

The fourth proportional to 374.33, 561.29 and 168.95 is: 253.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    374.33 : 561.29 = 168.95 : x
  2. Step 2: Convert to fraction form
    374.33/561.29 = 168.95/x
  3. Step 3: Cross multiply
    374.33x = 561.29 × 168.95
  4. Step 4: Simplify right side
    374.33x = 94,826.29
  5. Step 5: Solve for x
    x = 94,826.29/374.33
  6. Step 6: Final answer
    x = 253.33

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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.