Finding the Fourth Proportional to 281,385.09, 388,348.38 and 160,498.62
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Solution
The fourth proportional to 281,385.09, 388,348.38 and 160,498.62 is: 221,509.17
Step by Step Solution
- Step 1: Write the proportion equation
281,385.09 : 388,348.38 = 160,498.62 : x - Step 2: Convert to fraction form
281,385.09/388,348.38 = 160,498.62/x - Step 3: Cross multiply
281,385.09x = 388,348.38 × 160,498.62 - Step 4: Simplify right side
281,385.09x = 62,329,379,069.24 - Step 5: Solve for x
x = 62,329,379,069.24/281,385.09 - Step 6: Final answer
x = 221,509.17
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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.