Finding the Fourth Proportional to 326,772.28, 489,809.94 and 186,228.28
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Solution
The fourth proportional to 326,772.28, 489,809.94 and 186,228.28 is: 279,143.82
Step by Step Solution
- Step 1: Write the proportion equation
326,772.28 : 489,809.94 = 186,228.28 : x - Step 2: Convert to fraction form
326,772.28/489,809.94 = 186,228.28/x - Step 3: Cross multiply
326,772.28x = 489,809.94 × 186,228.28 - Step 4: Simplify right side
326,772.28x = 91,216,462,653.10 - Step 5: Solve for x
x = 91,216,462,653.10/326,772.28 - Step 6: Final answer
x = 279,143.82
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.