Finding the Fourth Proportional to 281,135.97, 387,977.85 and 160,257.69
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Solution
The fourth proportional to 281,135.97, 387,977.85 and 160,257.69 is: 221,161.43
Step by Step Solution
- Step 1: Write the proportion equation
281,135.97 : 387,977.85 = 160,257.69 : x - Step 2: Convert to fraction form
281,135.97/387,977.85 = 160,257.69/x - Step 3: Cross multiply
281,135.97x = 387,977.85 × 160,257.69 - Step 4: Simplify right side
281,135.97x = 62,176,434,012.17 - Step 5: Solve for x
x = 62,176,434,012.17/281,135.97 - Step 6: Final answer
x = 221,161.43
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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.