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Finding the Fourth Proportional to 675.32, 1,012.14 and 350.60

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Solution

The fourth proportional to 675.32, 1,012.14 and 350.60 is: 525.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    675.32 : 1,012.14 = 350.60 : x
  2. Step 2: Convert to fraction form
    675.32/1,012.14 = 350.60/x
  3. Step 3: Cross multiply
    675.32x = 1,012.14 × 350.60
  4. Step 4: Simplify right side
    675.32x = 354,856.28
  5. Step 5: Solve for x
    x = 354,856.28/675.32
  6. Step 6: Final answer
    x = 525.46

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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.