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Finding the Fourth Proportional to 253.01, 379.23 and 192.41

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Solution

The fourth proportional to 253.01, 379.23 and 192.41 is: 288.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    253.01 : 379.23 = 192.41 : x
  2. Step 2: Convert to fraction form
    253.01/379.23 = 192.41/x
  3. Step 3: Cross multiply
    253.01x = 379.23 × 192.41
  4. Step 4: Simplify right side
    253.01x = 72,967.64
  5. Step 5: Solve for x
    x = 72,967.64/253.01
  6. Step 6: Final answer
    x = 288.40

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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.