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Finding the Fourth Proportional to 518.55, 714.33 and 435.60

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Solution

The fourth proportional to 518.55, 714.33 and 435.60 is: 600.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    518.55 : 714.33 = 435.60 : x
  2. Step 2: Convert to fraction form
    518.55/714.33 = 435.60/x
  3. Step 3: Cross multiply
    518.55x = 714.33 × 435.60
  4. Step 4: Simplify right side
    518.55x = 311,162.15
  5. Step 5: Solve for x
    x = 311,162.15/518.55
  6. Step 6: Final answer
    x = 600.06

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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.