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Finding the Fourth Proportional to 263.01, 393.53 and 176.55

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Solution

The fourth proportional to 263.01, 393.53 and 176.55 is: 264.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    263.01 : 393.53 = 176.55 : x
  2. Step 2: Convert to fraction form
    263.01/393.53 = 176.55/x
  3. Step 3: Cross multiply
    263.01x = 393.53 × 176.55
  4. Step 4: Simplify right side
    263.01x = 69,475.36
  5. Step 5: Solve for x
    x = 69,475.36/263.01
  6. Step 6: Final answer
    x = 264.15

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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.