Home / 272,584.74-408,789.77-90,181.65

Finding the Fourth Proportional to 272,584.74, 408,789.77 and 90,181.65

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Solution

The fourth proportional to 272,584.74, 408,789.77 and 90,181.65 is: 135,243.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,584.74 : 408,789.77 = 90,181.65 : x
  2. Step 2: Convert to fraction form
    272,584.74/408,789.77 = 90,181.65/x
  3. Step 3: Cross multiply
    272,584.74x = 408,789.77 × 90,181.65
  4. Step 4: Simplify right side
    272,584.74x = 36,865,335,510.81
  5. Step 5: Solve for x
    x = 36,865,335,510.81/272,584.74
  6. Step 6: Final answer
    x = 135,243.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.