Home / 257,199.39-355,028.33-209,369.70

Finding the Fourth Proportional to 257,199.39, 355,028.33 and 209,369.70

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Solution

The fourth proportional to 257,199.39, 355,028.33 and 209,369.70 is: 289,006.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,199.39 : 355,028.33 = 209,369.70 : x
  2. Step 2: Convert to fraction form
    257,199.39/355,028.33 = 209,369.70/x
  3. Step 3: Cross multiply
    257,199.39x = 355,028.33 × 209,369.70
  4. Step 4: Simplify right side
    257,199.39x = 74,332,174,943.60
  5. Step 5: Solve for x
    x = 74,332,174,943.60/257,199.39
  6. Step 6: Final answer
    x = 289,006.03

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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.