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Finding the Fourth Proportional to 563.81, 845.19 and 357.75

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Solution

The fourth proportional to 563.81, 845.19 and 357.75 is: 536.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    563.81 : 845.19 = 357.75 : x
  2. Step 2: Convert to fraction form
    563.81/845.19 = 357.75/x
  3. Step 3: Cross multiply
    563.81x = 845.19 × 357.75
  4. Step 4: Simplify right side
    563.81x = 302,366.72
  5. Step 5: Solve for x
    x = 302,366.72/563.81
  6. Step 6: Final answer
    x = 536.30

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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.