Home / 257,834.38-355,805.93-143,106.33

Finding the Fourth Proportional to 257,834.38, 355,805.93 and 143,106.33

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Solution

The fourth proportional to 257,834.38, 355,805.93 and 143,106.33 is: 197,483.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,834.38 : 355,805.93 = 143,106.33 : x
  2. Step 2: Convert to fraction form
    257,834.38/355,805.93 = 143,106.33/x
  3. Step 3: Cross multiply
    257,834.38x = 355,805.93 × 143,106.33
  4. Step 4: Simplify right side
    257,834.38x = 50,918,080,834.54
  5. Step 5: Solve for x
    x = 50,918,080,834.54/257,834.38
  6. Step 6: Final answer
    x = 197,483.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.