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Finding the Fourth Proportional to 557.89, 835.62 and 351.95

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Solution

The fourth proportional to 557.89, 835.62 and 351.95 is: 527.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    557.89 : 835.62 = 351.95 : x
  2. Step 2: Convert to fraction form
    557.89/835.62 = 351.95/x
  3. Step 3: Cross multiply
    557.89x = 835.62 × 351.95
  4. Step 4: Simplify right side
    557.89x = 294,090.96
  5. Step 5: Solve for x
    x = 294,090.96/557.89
  6. Step 6: Final answer
    x = 527.15

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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.