Home / 379,021.68-523,036.44-209,255.40

Finding the Fourth Proportional to 379,021.68, 523,036.44 and 209,255.40

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Solution

The fourth proportional to 379,021.68, 523,036.44 and 209,255.40 is: 288,765.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,021.68 : 523,036.44 = 209,255.40 : x
  2. Step 2: Convert to fraction form
    379,021.68/523,036.44 = 209,255.40/x
  3. Step 3: Cross multiply
    379,021.68x = 523,036.44 × 209,255.40
  4. Step 4: Simplify right side
    379,021.68x = 109,448,199,466.78
  5. Step 5: Solve for x
    x = 109,448,199,466.78/379,021.68
  6. Step 6: Final answer
    x = 288,765.01

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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.