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Finding the Fourth Proportional to 650.14, 975.40 and 403.18

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Solution

The fourth proportional to 650.14, 975.40 and 403.18 is: 604.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    650.14 : 975.40 = 403.18 : x
  2. Step 2: Convert to fraction form
    650.14/975.40 = 403.18/x
  3. Step 3: Cross multiply
    650.14x = 975.40 × 403.18
  4. Step 4: Simplify right side
    650.14x = 393,261.77
  5. Step 5: Solve for x
    x = 393,261.77/650.14
  6. Step 6: Final answer
    x = 604.89

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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.