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Finding the Fourth Proportional to 615.56, 850.58 and 467.93

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Solution

The fourth proportional to 615.56, 850.58 and 467.93 is: 646.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    615.56 : 850.58 = 467.93 : x
  2. Step 2: Convert to fraction form
    615.56/850.58 = 467.93/x
  3. Step 3: Cross multiply
    615.56x = 850.58 × 467.93
  4. Step 4: Simplify right side
    615.56x = 398,013.44
  5. Step 5: Solve for x
    x = 398,013.44/615.56
  6. Step 6: Final answer
    x = 646.59

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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.