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Finding the Fourth Proportional to 350.77, 522.15 and 345.58

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Solution

The fourth proportional to 350.77, 522.15 and 345.58 is: 514.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    350.77 : 522.15 = 345.58 : x
  2. Step 2: Convert to fraction form
    350.77/522.15 = 345.58/x
  3. Step 3: Cross multiply
    350.77x = 522.15 × 345.58
  4. Step 4: Simplify right side
    350.77x = 180,444.60
  5. Step 5: Solve for x
    x = 180,444.60/350.77
  6. Step 6: Final answer
    x = 514.42

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.