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Finding the Fourth Proportional to 1,161.79, 1,742.65 and 296.10

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Solution

The fourth proportional to 1,161.79, 1,742.65 and 296.10 is: 444.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,161.79 : 1,742.65 = 296.10 : x
  2. Step 2: Convert to fraction form
    1,161.79/1,742.65 = 296.10/x
  3. Step 3: Cross multiply
    1,161.79x = 1,742.65 × 296.10
  4. Step 4: Simplify right side
    1,161.79x = 515,998.67
  5. Step 5: Solve for x
    x = 515,998.67/1,161.79
  6. Step 6: Final answer
    x = 444.14

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