Home / 257,199.14-355,027.97-209,369.45

Finding the Fourth Proportional to 257,199.14, 355,027.97 and 209,369.45

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Solution

The fourth proportional to 257,199.14, 355,027.97 and 209,369.45 is: 289,005.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,199.14 : 355,027.97 = 209,369.45 : x
  2. Step 2: Convert to fraction form
    257,199.14/355,027.97 = 209,369.45/x
  3. Step 3: Cross multiply
    257,199.14x = 355,027.97 × 209,369.45
  4. Step 4: Simplify right side
    257,199.14x = 74,332,010,813.52
  5. Step 5: Solve for x
    x = 74,332,010,813.52/257,199.14
  6. Step 6: Final answer
    x = 289,005.67

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1.5x scale

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.