Home / 762,107.28-1,143,161.40-193,530.96

Finding the Fourth Proportional to 762,107.28, 1,143,161.40 and 193,530.96

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Solution

The fourth proportional to 762,107.28, 1,143,161.40 and 193,530.96 is: 290,296.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,107.28 : 1,143,161.40 = 193,530.96 : x
  2. Step 2: Convert to fraction form
    762,107.28/1,143,161.40 = 193,530.96/x
  3. Step 3: Cross multiply
    762,107.28x = 1,143,161.40 × 193,530.96
  4. Step 4: Simplify right side
    762,107.28x = 221,237,123,176.94
  5. Step 5: Solve for x
    x = 221,237,123,176.94/762,107.28
  6. Step 6: Final answer
    x = 290,296.56

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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.