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Finding the Fourth Proportional to 228,065.33, 342,268.41 and 86,050.67

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Solution

The fourth proportional to 228,065.33, 342,268.41 and 86,050.67 is: 129,140.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,065.33 : 342,268.41 = 86,050.67 : x
  2. Step 2: Convert to fraction form
    228,065.33/342,268.41 = 86,050.67/x
  3. Step 3: Cross multiply
    228,065.33x = 342,268.41 × 86,050.67
  4. Step 4: Simplify right side
    228,065.33x = 29,452,424,288.99
  5. Step 5: Solve for x
    x = 29,452,424,288.99/228,065.33
  6. Step 6: Final answer
    x = 129,140.29

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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.