Home / 268,786.69-370,911.80-147,939.45

Finding the Fourth Proportional to 268,786.69, 370,911.80 and 147,939.45

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Solution

The fourth proportional to 268,786.69, 370,911.80 and 147,939.45 is: 204,148.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,786.69 : 370,911.80 = 147,939.45 : x
  2. Step 2: Convert to fraction form
    268,786.69/370,911.80 = 147,939.45/x
  3. Step 3: Cross multiply
    268,786.69x = 370,911.80 × 147,939.45
  4. Step 4: Simplify right side
    268,786.69x = 54,872,487,690.51
  5. Step 5: Solve for x
    x = 54,872,487,690.51/268,786.69
  6. Step 6: Final answer
    x = 204,148.83

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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.