Finding the Fourth Proportional to 218,959.57, 328,411.07 and 69,214.97
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Solution
The fourth proportional to 218,959.57, 328,411.07 and 69,214.97 is: 103,813.52
Step by Step Solution
- Step 1: Write the proportion equation
218,959.57 : 328,411.07 = 69,214.97 : x - Step 2: Convert to fraction form
218,959.57/328,411.07 = 69,214.97/x - Step 3: Cross multiply
218,959.57x = 328,411.07 × 69,214.97 - Step 4: Simplify right side
218,959.57x = 22,730,963,092.23 - Step 5: Solve for x
x = 22,730,963,092.23/218,959.57 - Step 6: Final answer
x = 103,813.52
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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.