Finding the Fourth Proportional to 228,911.41, 315,930.14 and 126,959.41
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Solution
The fourth proportional to 228,911.41, 315,930.14 and 126,959.41 is: 175,221.95
Step by Step Solution
- Step 1: Write the proportion equation
228,911.41 : 315,930.14 = 126,959.41 : x - Step 2: Convert to fraction form
228,911.41/315,930.14 = 126,959.41/x - Step 3: Cross multiply
228,911.41x = 315,930.14 × 126,959.41 - Step 4: Simplify right side
228,911.41x = 40,110,304,175.62 - Step 5: Solve for x
x = 40,110,304,175.62/228,911.41 - Step 6: Final answer
x = 175,221.95
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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.