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Finding the Fourth Proportional to 1,161.95, 1,743.01 and 296.25

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Solution

The fourth proportional to 1,161.95, 1,743.01 and 296.25 is: 444.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,161.95 : 1,743.01 = 296.25 : x
  2. Step 2: Convert to fraction form
    1,161.95/1,743.01 = 296.25/x
  3. Step 3: Cross multiply
    1,161.95x = 1,743.01 × 296.25
  4. Step 4: Simplify right side
    1,161.95x = 516,365.97
  5. Step 5: Solve for x
    x = 516,365.97/1,161.95
  6. Step 6: Final answer
    x = 444.40

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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.