Finding the Fourth Proportional to 279,731.71, 419,963.44 and 166,086.99
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Solution
The fourth proportional to 279,731.71, 419,963.44 and 166,086.99 is: 249,347.72
Step by Step Solution
- Step 1: Write the proportion equation
279,731.71 : 419,963.44 = 166,086.99 : x - Step 2: Convert to fraction form
279,731.71/419,963.44 = 166,086.99/x - Step 3: Cross multiply
279,731.71x = 419,963.44 × 166,086.99 - Step 4: Simplify right side
279,731.71x = 69,750,464,392.21 - Step 5: Solve for x
x = 69,750,464,392.21/279,731.71 - Step 6: Final answer
x = 249,347.72
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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.