Home / 277,979.66-383,409.21-176,021.72

Finding the Fourth Proportional to 277,979.66, 383,409.21 and 176,021.72

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Solution

The fourth proportional to 277,979.66, 383,409.21 and 176,021.72 is: 242,781.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,979.66 : 383,409.21 = 176,021.72 : x
  2. Step 2: Convert to fraction form
    277,979.66/383,409.21 = 176,021.72/x
  3. Step 3: Cross multiply
    277,979.66x = 383,409.21 × 176,021.72
  4. Step 4: Simplify right side
    277,979.66x = 67,488,348,608.04
  5. Step 5: Solve for x
    x = 67,488,348,608.04/277,979.66
  6. Step 6: Final answer
    x = 242,781.61

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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.