Finding the Fourth Proportional to 228,813.24, 315,412.25 and 160,638.96
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Solution
The fourth proportional to 228,813.24, 315,412.25 and 160,638.96 is: 221,436.03
Step by Step Solution
- Step 1: Write the proportion equation
228,813.24 : 315,412.25 = 160,638.96 : x - Step 2: Convert to fraction form
228,813.24/315,412.25 = 160,638.96/x - Step 3: Cross multiply
228,813.24x = 315,412.25 × 160,638.96 - Step 4: Simplify right side
228,813.24x = 50,667,495,811.26 - Step 5: Solve for x
x = 50,667,495,811.26/228,813.24 - Step 6: Final answer
x = 221,436.03
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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.