Finding the Fourth Proportional to 186,474.79, 257,335.55 and 105,902.31
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Solution
The fourth proportional to 186,474.79, 257,335.55 and 105,902.31 is: 146,145.38
Step by Step Solution
- Step 1: Write the proportion equation
186,474.79 : 257,335.55 = 105,902.31 : x - Step 2: Convert to fraction form
186,474.79/257,335.55 = 105,902.31/x - Step 3: Cross multiply
186,474.79x = 257,335.55 × 105,902.31 - Step 4: Simplify right side
186,474.79x = 27,252,429,190.12 - Step 5: Solve for x
x = 27,252,429,190.12/186,474.79 - Step 6: Final answer
x = 146,145.38
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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.