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Finding the Fourth Proportional to 675.77, 932.38 and 380.99

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Solution

The fourth proportional to 675.77, 932.38 and 380.99 is: 525.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    675.77 : 932.38 = 380.99 : x
  2. Step 2: Convert to fraction form
    675.77/932.38 = 380.99/x
  3. Step 3: Cross multiply
    675.77x = 932.38 × 380.99
  4. Step 4: Simplify right side
    675.77x = 355,228.83
  5. Step 5: Solve for x
    x = 355,228.83/675.77
  6. Step 6: Final answer
    x = 525.67

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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.