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Finding the Fourth Proportional to 1,008.30, 1,512.34 and 350.06

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Solution

The fourth proportional to 1,008.30, 1,512.34 and 350.06 is: 525.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008.30 : 1,512.34 = 350.06 : x
  2. Step 2: Convert to fraction form
    1,008.30/1,512.34 = 350.06/x
  3. Step 3: Cross multiply
    1,008.30x = 1,512.34 × 350.06
  4. Step 4: Simplify right side
    1,008.30x = 529,408.29
  5. Step 5: Solve for x
    x = 529,408.29/1,008.30
  6. Step 6: Final answer
    x = 525.05

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1.5x scale

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.