Finding the Fourth Proportional to 281,113.60, 387,924.48 and 153,791.68
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Solution
The fourth proportional to 281,113.60, 387,924.48 and 153,791.68 is: 212,225.80
Step by Step Solution
- Step 1: Write the proportion equation
281,113.60 : 387,924.48 = 153,791.68 : x - Step 2: Convert to fraction form
281,113.60/387,924.48 = 153,791.68/x - Step 3: Cross multiply
281,113.60x = 387,924.48 × 153,791.68 - Step 4: Simplify right side
281,113.60x = 59,659,557,492.33 - Step 5: Solve for x
x = 59,659,557,492.33/281,113.60 - Step 6: Final answer
x = 212,225.80
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1.5x scale
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.