Finding the Fourth Proportional to 207,884.80, 286,854.40 and 118,489.60
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Solution
The fourth proportional to 207,884.80, 286,854.40 and 118,489.60 is: 163,500.47
Step by Step Solution
- Step 1: Write the proportion equation
207,884.80 : 286,854.40 = 118,489.60 : x - Step 2: Convert to fraction form
207,884.80/286,854.40 = 118,489.60/x - Step 3: Cross multiply
207,884.80x = 286,854.40 × 118,489.60 - Step 4: Simplify right side
207,884.80x = 33,989,263,114.24 - Step 5: Solve for x
x = 33,989,263,114.24/207,884.80 - Step 6: Final answer
x = 163,500.47
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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.