Finding the Fourth Proportional to 321,102.08, 442,604.42 and 217,702.77
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Solution
The fourth proportional to 321,102.08, 442,604.42 and 217,702.77 is: 300,079.68
Step by Step Solution
- Step 1: Write the proportion equation
321,102.08 : 442,604.42 = 217,702.77 : x - Step 2: Convert to fraction form
321,102.08/442,604.42 = 217,702.77/x - Step 3: Cross multiply
321,102.08x = 442,604.42 × 217,702.77 - Step 4: Simplify right side
321,102.08x = 96,356,208,248.24 - Step 5: Solve for x
x = 96,356,208,248.24/321,102.08 - Step 6: Final answer
x = 300,079.68
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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.