Home / 379,001.43-523,022.67-209,235.69

Finding the Fourth Proportional to 379,001.43, 523,022.67 and 209,235.69

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Solution

The fourth proportional to 379,001.43, 523,022.67 and 209,235.69 is: 288,745.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,001.43 : 523,022.67 = 209,235.69 : x
  2. Step 2: Convert to fraction form
    379,001.43/523,022.67 = 209,235.69/x
  3. Step 3: Cross multiply
    379,001.43x = 523,022.67 × 209,235.69
  4. Step 4: Simplify right side
    379,001.43x = 109,435,009,243.09
  5. Step 5: Solve for x
    x = 109,435,009,243.09/379,001.43
  6. Step 6: Final answer
    x = 288,745.64

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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.