Finding the Fourth Proportional to 369,371.48, 509,725.71 and 208,226.63
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Solution
The fourth proportional to 369,371.48, 509,725.71 and 208,226.63 is: 287,348.85
Step by Step Solution
- Step 1: Write the proportion equation
369,371.48 : 509,725.71 = 208,226.63 : x - Step 2: Convert to fraction form
369,371.48/509,725.71 = 208,226.63/x - Step 3: Cross multiply
369,371.48x = 509,725.71 × 208,226.63 - Step 4: Simplify right side
369,371.48x = 106,138,468,091.97 - Step 5: Solve for x
x = 106,138,468,091.97/369,371.48 - Step 6: Final answer
x = 287,348.85
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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.