Finding the Fourth Proportional to 218,845.28, 328,312.08 and 69,108.96
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Solution
The fourth proportional to 218,845.28, 328,312.08 and 69,108.96 is: 103,677.39
Step by Step Solution
- Step 1: Write the proportion equation
218,845.28 : 328,312.08 = 69,108.96 : x - Step 2: Convert to fraction form
218,845.28/328,312.08 = 69,108.96/x - Step 3: Cross multiply
218,845.28x = 328,312.08 × 69,108.96 - Step 4: Simplify right side
218,845.28x = 22,689,306,404.24 - Step 5: Solve for x
x = 22,689,306,404.24/218,845.28 - Step 6: Final answer
x = 103,677.39
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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.