Finding the Fourth Proportional to 228,893.11, 315,873.17 and 126,925.75
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Solution
The fourth proportional to 228,893.11, 315,873.17 and 126,925.75 is: 175,157.91
Step by Step Solution
- Step 1: Write the proportion equation
228,893.11 : 315,873.17 = 126,925.75 : x - Step 2: Convert to fraction form
228,893.11/315,873.17 = 126,925.75/x - Step 3: Cross multiply
228,893.11x = 315,873.17 × 126,925.75 - Step 4: Simplify right side
228,893.11x = 40,092,439,243.31 - Step 5: Solve for x
x = 40,092,439,243.31/228,893.11 - Step 6: Final answer
x = 175,157.91
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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.