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Finding the Fourth Proportional to 350,289, 483,399.36 and 199,386

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Solution

The fourth proportional to 350,289, 483,399.36 and 199,386 is: 275,152.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,289 : 483,399.36 = 199,386 : x
  2. Step 2: Convert to fraction form
    350,289/483,399.36 = 199,386/x
  3. Step 3: Cross multiply
    350,289x = 483,399.36 × 199,386
  4. Step 4: Simplify right side
    350,289x = 96,383,064,792.96
  5. Step 5: Solve for x
    x = 96,383,064,792.96/350,289
  6. Step 6: Final answer
    x = 275,152.99

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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.