Finding the Fourth Proportional to 218,844.20, 328,143.17 and 69,056.57
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Solution
The fourth proportional to 218,844.20, 328,143.17 and 69,056.57 is: 103,545.99
Step by Step Solution
- Step 1: Write the proportion equation
218,844.20 : 328,143.17 = 69,056.57 : x - Step 2: Convert to fraction form
218,844.20/328,143.17 = 69,056.57/x - Step 3: Cross multiply
218,844.20x = 328,143.17 × 69,056.57 - Step 4: Simplify right side
218,844.20x = 22,660,439,803.13 - Step 5: Solve for x
x = 22,660,439,803.13/218,844.20 - Step 6: Final answer
x = 103,545.99
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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.