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Finding the Fourth Proportional to 552.21, 826.62 and 346.06

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Solution

The fourth proportional to 552.21, 826.62 and 346.06 is: 518.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    552.21 : 826.62 = 346.06 : x
  2. Step 2: Convert to fraction form
    552.21/826.62 = 346.06/x
  3. Step 3: Cross multiply
    552.21x = 826.62 × 346.06
  4. Step 4: Simplify right side
    552.21x = 286,060.12
  5. Step 5: Solve for x
    x = 286,060.12/552.21
  6. Step 6: Final answer
    x = 518.03

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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.