Home / 318,286.37-440,391.79-277,535.47

Finding the Fourth Proportional to 318,286.37, 440,391.79 and 277,535.47

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Solution

The fourth proportional to 318,286.37, 440,391.79 and 277,535.47 is: 384,007.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,286.37 : 440,391.79 = 277,535.47 : x
  2. Step 2: Convert to fraction form
    318,286.37/440,391.79 = 277,535.47/x
  3. Step 3: Cross multiply
    318,286.37x = 440,391.79 × 277,535.47
  4. Step 4: Simplify right side
    318,286.37x = 122,224,342,421.79
  5. Step 5: Solve for x
    x = 122,224,342,421.79/318,286.37
  6. Step 6: Final answer
    x = 384,007.47

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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.