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Finding the Fourth Proportional to 1,063.90, 1,595.30 and 333.28

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Solution

The fourth proportional to 1,063.90, 1,595.30 and 333.28 is: 499.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,063.90 : 1,595.30 = 333.28 : x
  2. Step 2: Convert to fraction form
    1,063.90/1,595.30 = 333.28/x
  3. Step 3: Cross multiply
    1,063.90x = 1,595.30 × 333.28
  4. Step 4: Simplify right side
    1,063.90x = 531,681.58
  5. Step 5: Solve for x
    x = 531,681.58/1,063.90
  6. Step 6: Final answer
    x = 499.75

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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.