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Finding the Fourth Proportional to 885.93, 1,329.03 and 308.67

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Solution

The fourth proportional to 885.93, 1,329.03 and 308.67 is: 463.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    885.93 : 1,329.03 = 308.67 : x
  2. Step 2: Convert to fraction form
    885.93/1,329.03 = 308.67/x
  3. Step 3: Cross multiply
    885.93x = 1,329.03 × 308.67
  4. Step 4: Simplify right side
    885.93x = 410,231.69
  5. Step 5: Solve for x
    x = 410,231.69/885.93
  6. Step 6: Final answer
    x = 463.05

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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.