Finding the Fourth Proportional to 228,854.79, 343,235.26 and 86,651.00
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Solution
The fourth proportional to 228,854.79, 343,235.26 and 86,651.00 is: 129,958.74
Step by Step Solution
- Step 1: Write the proportion equation
228,854.79 : 343,235.26 = 86,651.00 : x - Step 2: Convert to fraction form
228,854.79/343,235.26 = 86,651.00/x - Step 3: Cross multiply
228,854.79x = 343,235.26 × 86,651.00 - Step 4: Simplify right side
228,854.79x = 29,741,680,124.23 - Step 5: Solve for x
x = 29,741,680,124.23/228,854.79 - Step 6: Final answer
x = 129,958.74
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.