Finding the Fourth Proportional to 208,728.18, 288,045.18 and 113,235.12
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Solution
The fourth proportional to 208,728.18, 288,045.18 and 113,235.12 is: 156,264.62
Step by Step Solution
- Step 1: Write the proportion equation
208,728.18 : 288,045.18 = 113,235.12 : x - Step 2: Convert to fraction form
208,728.18/288,045.18 = 113,235.12/x - Step 3: Cross multiply
208,728.18x = 288,045.18 × 113,235.12 - Step 4: Simplify right side
208,728.18x = 32,616,830,522.72 - Step 5: Solve for x
x = 32,616,830,522.72/208,728.18 - Step 6: Final answer
x = 156,264.62
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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.