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Finding the Fourth Proportional to 967.77, 1,451.31 and 351.33

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Solution

The fourth proportional to 967.77, 1,451.31 and 351.33 is: 526.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    967.77 : 1,451.31 = 351.33 : x
  2. Step 2: Convert to fraction form
    967.77/1,451.31 = 351.33/x
  3. Step 3: Cross multiply
    967.77x = 1,451.31 × 351.33
  4. Step 4: Simplify right side
    967.77x = 509,888.74
  5. Step 5: Solve for x
    x = 509,888.74/967.77
  6. Step 6: Final answer
    x = 526.87

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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.