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Finding the Fourth Proportional to 374.63, 561.48 and 169.14

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Solution

The fourth proportional to 374.63, 561.48 and 169.14 is: 253.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    374.63 : 561.48 = 169.14 : x
  2. Step 2: Convert to fraction form
    374.63/561.48 = 169.14/x
  3. Step 3: Cross multiply
    374.63x = 561.48 × 169.14
  4. Step 4: Simplify right side
    374.63x = 94,968.73
  5. Step 5: Solve for x
    x = 94,968.73/374.63
  6. Step 6: Final answer
    x = 253.50

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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.