Finding the Fourth Proportional to 286,541.36, 395,419.20 and 159,213.68
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Solution
The fourth proportional to 286,541.36, 395,419.20 and 159,213.68 is: 219,710.50
Step by Step Solution
- Step 1: Write the proportion equation
286,541.36 : 395,419.20 = 159,213.68 : x - Step 2: Convert to fraction form
286,541.36/395,419.20 = 159,213.68/x - Step 3: Cross multiply
286,541.36x = 395,419.20 × 159,213.68 - Step 4: Simplify right side
286,541.36x = 62,956,145,974.66 - Step 5: Solve for x
x = 62,956,145,974.66/286,541.36 - Step 6: Final answer
x = 219,710.50
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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.