Finding the Fourth Proportional to 306,155.31, 422,499.36 and 168,340.02
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Solution
The fourth proportional to 306,155.31, 422,499.36 and 168,340.02 is: 232,311.99
Step by Step Solution
- Step 1: Write the proportion equation
306,155.31 : 422,499.36 = 168,340.02 : x - Step 2: Convert to fraction form
306,155.31/422,499.36 = 168,340.02/x - Step 3: Cross multiply
306,155.31x = 422,499.36 × 168,340.02 - Step 4: Simplify right side
306,155.31x = 71,123,550,712.39 - Step 5: Solve for x
x = 71,123,550,712.39/306,155.31 - Step 6: Final answer
x = 232,311.99
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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.