Home / 272,742.74-408,923.90-120,857.21

Finding the Fourth Proportional to 272,742.74, 408,923.90 and 120,857.21

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Solution

The fourth proportional to 272,742.74, 408,923.90 and 120,857.21 is: 181,201.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,742.74 : 408,923.90 = 120,857.21 : x
  2. Step 2: Convert to fraction form
    272,742.74/408,923.90 = 120,857.21/x
  3. Step 3: Cross multiply
    272,742.74x = 408,923.90 × 120,857.21
  4. Step 4: Simplify right side
    272,742.74x = 49,421,399,007.41
  5. Step 5: Solve for x
    x = 49,421,399,007.41/272,742.74
  6. Step 6: Final answer
    x = 181,201.52

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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.