Finding the Fourth Proportional to 283,659.97, 391,449.97 and 156,335.53
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Solution
The fourth proportional to 283,659.97, 391,449.97 and 156,335.53 is: 215,742.60
Step by Step Solution
- Step 1: Write the proportion equation
283,659.97 : 391,449.97 = 156,335.53 : x - Step 2: Convert to fraction form
283,659.97/391,449.97 = 156,335.53/x - Step 3: Cross multiply
283,659.97x = 391,449.97 × 156,335.53 - Step 4: Simplify right side
283,659.97x = 61,197,538,528.43 - Step 5: Solve for x
x = 61,197,538,528.43/283,659.97 - Step 6: Final answer
x = 215,742.60
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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.