Finding the Fourth Proportional to 281,064.49, 387,859.28 and 160,244.68
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Solution
The fourth proportional to 281,064.49, 387,859.28 and 160,244.68 is: 221,132.12
Step by Step Solution
- Step 1: Write the proportion equation
281,064.49 : 387,859.28 = 160,244.68 : x - Step 2: Convert to fraction form
281,064.49/387,859.28 = 160,244.68/x - Step 3: Cross multiply
281,064.49x = 387,859.28 × 160,244.68 - Step 4: Simplify right side
281,064.49x = 62,152,386,208.63 - Step 5: Solve for x
x = 62,152,386,208.63/281,064.49 - Step 6: Final answer
x = 221,132.12
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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.