Finding the Fourth Proportional to 228,841.14, 315,771.53 and 126,865.65
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Solution
The fourth proportional to 228,841.14, 315,771.53 and 126,865.65 is: 175,058.38
Step by Step Solution
- Step 1: Write the proportion equation
228,841.14 : 315,771.53 = 126,865.65 : x - Step 2: Convert to fraction form
228,841.14/315,771.53 = 126,865.65/x - Step 3: Cross multiply
228,841.14x = 315,771.53 × 126,865.65 - Step 4: Simplify right side
228,841.14x = 40,060,559,770.62 - Step 5: Solve for x
x = 40,060,559,770.62/228,841.14 - Step 6: Final answer
x = 175,058.38
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1.5x scale
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.