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Finding the Fourth Proportional to 448.56, 617.88 and 350.28

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Solution

The fourth proportional to 448.56, 617.88 and 350.28 is: 482.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    448.56 : 617.88 = 350.28 : x
  2. Step 2: Convert to fraction form
    448.56/617.88 = 350.28/x
  3. Step 3: Cross multiply
    448.56x = 617.88 × 350.28
  4. Step 4: Simplify right side
    448.56x = 216,431.01
  5. Step 5: Solve for x
    x = 216,431.01/448.56
  6. Step 6: Final answer
    x = 482.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.