Finding the Fourth Proportional to 228,701.13, 315,602.85 and 126,725.70
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Solution
The fourth proportional to 228,701.13, 315,602.85 and 126,725.70 is: 174,878.85
Step by Step Solution
- Step 1: Write the proportion equation
228,701.13 : 315,602.85 = 126,725.70 : x - Step 2: Convert to fraction form
228,701.13/315,602.85 = 126,725.70/x - Step 3: Cross multiply
228,701.13x = 315,602.85 × 126,725.70 - Step 4: Simplify right side
228,701.13x = 39,994,991,454.62 - Step 5: Solve for x
x = 39,994,991,454.62/228,701.13 - Step 6: Final answer
x = 174,878.85
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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.