Finding the Fourth Proportional to 219,092.30, 328,768.05 and 78,832.70
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Solution
The fourth proportional to 219,092.30, 328,768.05 and 78,832.70 is: 118,295.68
Step by Step Solution
- Step 1: Write the proportion equation
219,092.30 : 328,768.05 = 78,832.70 : x - Step 2: Convert to fraction form
219,092.30/328,768.05 = 78,832.70/x - Step 3: Cross multiply
219,092.30x = 328,768.05 × 78,832.70 - Step 4: Simplify right side
219,092.30x = 25,917,673,055.24 - Step 5: Solve for x
x = 25,917,673,055.24/219,092.30 - Step 6: Final answer
x = 118,295.68
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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.