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Finding the Fourth Proportional to 555.02, 765.48 and 333.92

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Solution

The fourth proportional to 555.02, 765.48 and 333.92 is: 460.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    555.02 : 765.48 = 333.92 : x
  2. Step 2: Convert to fraction form
    555.02/765.48 = 333.92/x
  3. Step 3: Cross multiply
    555.02x = 765.48 × 333.92
  4. Step 4: Simplify right side
    555.02x = 255,609.08
  5. Step 5: Solve for x
    x = 255,609.08/555.02
  6. Step 6: Final answer
    x = 460.54

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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.