Home / 316,939.38-437,379.78-173,696.34

Finding the Fourth Proportional to 316,939.38, 437,379.78 and 173,696.34

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Solution

The fourth proportional to 316,939.38, 437,379.78 and 173,696.34 is: 239,702.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,939.38 : 437,379.78 = 173,696.34 : x
  2. Step 2: Convert to fraction form
    316,939.38/437,379.78 = 173,696.34/x
  3. Step 3: Cross multiply
    316,939.38x = 437,379.78 × 173,696.34
  4. Step 4: Simplify right side
    316,939.38x = 75,971,266,976.01
  5. Step 5: Solve for x
    x = 75,971,266,976.01/316,939.38
  6. Step 6: Final answer
    x = 239,702.83

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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.