Finding the Fourth Proportional to 220,841.12, 304,658.84 and 130,135.12
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Solution
The fourth proportional to 220,841.12, 304,658.84 and 130,135.12 is: 179,526.42
Step by Step Solution
- Step 1: Write the proportion equation
220,841.12 : 304,658.84 = 130,135.12 : x - Step 2: Convert to fraction form
220,841.12/304,658.84 = 130,135.12/x - Step 3: Cross multiply
220,841.12x = 304,658.84 × 130,135.12 - Step 4: Simplify right side
220,841.12x = 39,646,814,702.46 - Step 5: Solve for x
x = 39,646,814,702.46/220,841.12 - Step 6: Final answer
x = 179,526.42
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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.