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Finding the Fourth Proportional to 445.66, 668.65 and 202.35

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Solution

The fourth proportional to 445.66, 668.65 and 202.35 is: 303.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    445.66 : 668.65 = 202.35 : x
  2. Step 2: Convert to fraction form
    445.66/668.65 = 202.35/x
  3. Step 3: Cross multiply
    445.66x = 668.65 × 202.35
  4. Step 4: Simplify right side
    445.66x = 135,300.82
  5. Step 5: Solve for x
    x = 135,300.82/445.66
  6. Step 6: Final answer
    x = 303.60

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.