Finding the Fourth Proportional to 281,160.40, 387,991.70 and 160,340.62
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Solution
The fourth proportional to 281,160.40, 387,991.70 and 160,340.62 is: 221,264.55
Step by Step Solution
- Step 1: Write the proportion equation
281,160.40 : 387,991.70 = 160,340.62 : x - Step 2: Convert to fraction form
281,160.40/387,991.70 = 160,340.62/x - Step 3: Cross multiply
281,160.40x = 387,991.70 × 160,340.62 - Step 4: Simplify right side
281,160.40x = 62,210,829,732.85 - Step 5: Solve for x
x = 62,210,829,732.85/281,160.40 - Step 6: Final answer
x = 221,264.55
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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.