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Finding the Fourth Proportional to 602.05, 902.40 and 276.75

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Solution

The fourth proportional to 602.05, 902.40 and 276.75 is: 414.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    602.05 : 902.40 = 276.75 : x
  2. Step 2: Convert to fraction form
    602.05/902.40 = 276.75/x
  3. Step 3: Cross multiply
    602.05x = 902.40 × 276.75
  4. Step 4: Simplify right side
    602.05x = 249,739.20
  5. Step 5: Solve for x
    x = 249,739.20/602.05
  6. Step 6: Final answer
    x = 414.81

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Why These Related Problems?

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