Finding the Fourth Proportional to 280,322.24, 420,538.84 and 102,830.80
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Solution
The fourth proportional to 280,322.24, 420,538.84 and 102,830.80 is: 154,266.55
Step by Step Solution
- Step 1: Write the proportion equation
280,322.24 : 420,538.84 = 102,830.80 : x - Step 2: Convert to fraction form
280,322.24/420,538.84 = 102,830.80/x - Step 3: Cross multiply
280,322.24x = 420,538.84 × 102,830.80 - Step 4: Simplify right side
280,322.24x = 43,244,345,348.27 - Step 5: Solve for x
x = 43,244,345,348.27/280,322.24 - Step 6: Final answer
x = 154,266.55
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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.