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Finding the Fourth Proportional to 558.64, 838.05 and 234.03

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Solution

The fourth proportional to 558.64, 838.05 and 234.03 is: 351.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    558.64 : 838.05 = 234.03 : x
  2. Step 2: Convert to fraction form
    558.64/838.05 = 234.03/x
  3. Step 3: Cross multiply
    558.64x = 838.05 × 234.03
  4. Step 4: Simplify right side
    558.64x = 196,128.84
  5. Step 5: Solve for x
    x = 196,128.84/558.64
  6. Step 6: Final answer
    x = 351.08

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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.