Home / 272,187.73-408,364.62-139,161.38

Finding the Fourth Proportional to 272,187.73, 408,364.62 and 139,161.38

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Solution

The fourth proportional to 272,187.73, 408,364.62 and 139,161.38 is: 208,784.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,187.73 : 408,364.62 = 139,161.38 : x
  2. Step 2: Convert to fraction form
    272,187.73/408,364.62 = 139,161.38/x
  3. Step 3: Cross multiply
    272,187.73x = 408,364.62 × 139,161.38
  4. Step 4: Simplify right side
    272,187.73x = 56,828,584,062.38
  5. Step 5: Solve for x
    x = 56,828,584,062.38/272,187.73
  6. Step 6: Final answer
    x = 208,784.52

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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.