Finding the Fourth Proportional to 281,292.62, 388,107.05 and 160,389.81
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Solution
The fourth proportional to 281,292.62, 388,107.05 and 160,389.81 is: 221,294.17
Step by Step Solution
- Step 1: Write the proportion equation
281,292.62 : 388,107.05 = 160,389.81 : x - Step 2: Convert to fraction form
281,292.62/388,107.05 = 160,389.81/x - Step 3: Cross multiply
281,292.62x = 388,107.05 × 160,389.81 - Step 4: Simplify right side
281,292.62x = 62,248,415,207.21 - Step 5: Solve for x
x = 62,248,415,207.21/281,292.62 - Step 6: Final answer
x = 221,294.17
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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.