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Finding the Fourth Proportional to 963.09, 1,444.59 and 260.33

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Solution

The fourth proportional to 963.09, 1,444.59 and 260.33 is: 390.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    963.09 : 1,444.59 = 260.33 : x
  2. Step 2: Convert to fraction form
    963.09/1,444.59 = 260.33/x
  3. Step 3: Cross multiply
    963.09x = 1,444.59 × 260.33
  4. Step 4: Simplify right side
    963.09x = 376,062.89
  5. Step 5: Solve for x
    x = 376,062.89/963.09
  6. Step 6: Final answer
    x = 390.48

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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.