Finding the Fourth Proportional to 203,257.31, 280,471.95 and 112,590.68
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Solution
The fourth proportional to 203,257.31, 280,471.95 and 112,590.68 is: 155,362.32
Step by Step Solution
- Step 1: Write the proportion equation
203,257.31 : 280,471.95 = 112,590.68 : x - Step 2: Convert to fraction form
203,257.31/280,471.95 = 112,590.68/x - Step 3: Cross multiply
203,257.31x = 280,471.95 × 112,590.68 - Step 4: Simplify right side
203,257.31x = 31,578,526,169.07 - Step 5: Solve for x
x = 31,578,526,169.07/203,257.31 - Step 6: Final answer
x = 155,362.32
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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.