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Finding the Fourth Proportional to 483.40, 665.95 and 335.77

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Solution

The fourth proportional to 483.40, 665.95 and 335.77 is: 462.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    483.40 : 665.95 = 335.77 : x
  2. Step 2: Convert to fraction form
    483.40/665.95 = 335.77/x
  3. Step 3: Cross multiply
    483.40x = 665.95 × 335.77
  4. Step 4: Simplify right side
    483.40x = 223,606.03
  5. Step 5: Solve for x
    x = 223,606.03/483.40
  6. Step 6: Final answer
    x = 462.57

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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.