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Finding the Fourth Proportional to 950.55, 1,425.83 and 365.42

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Solution

The fourth proportional to 950.55, 1,425.83 and 365.42 is: 548.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    950.55 : 1,425.83 = 365.42 : x
  2. Step 2: Convert to fraction form
    950.55/1,425.83 = 365.42/x
  3. Step 3: Cross multiply
    950.55x = 1,425.83 × 365.42
  4. Step 4: Simplify right side
    950.55x = 521,017.84
  5. Step 5: Solve for x
    x = 521,017.84/950.55
  6. Step 6: Final answer
    x = 548.12

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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.