Finding the Fourth Proportional to 420,178.44, 579,911.14 and 248,114.82
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Solution
The fourth proportional to 420,178.44, 579,911.14 and 248,114.82 is: 342,436.77
Step by Step Solution
- Step 1: Write the proportion equation
420,178.44 : 579,911.14 = 248,114.82 : x - Step 2: Convert to fraction form
420,178.44/579,911.14 = 248,114.82/x - Step 3: Cross multiply
420,178.44x = 579,911.14 × 248,114.82 - Step 4: Simplify right side
420,178.44x = 143,884,548,117.10 - Step 5: Solve for x
x = 143,884,548,117.10/420,178.44 - Step 6: Final answer
x = 342,436.77
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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.