Finding the Fourth Proportional to 310,844.31, 428,947.54 and 174,883.98
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Solution
The fourth proportional to 310,844.31, 428,947.54 and 174,883.98 is: 241,329.99
Step by Step Solution
- Step 1: Write the proportion equation
310,844.31 : 428,947.54 = 174,883.98 : x - Step 2: Convert to fraction form
310,844.31/428,947.54 = 174,883.98/x - Step 3: Cross multiply
310,844.31x = 428,947.54 × 174,883.98 - Step 4: Simplify right side
310,844.31x = 75,016,053,006.41 - Step 5: Solve for x
x = 75,016,053,006.41/310,844.31 - Step 6: Final answer
x = 241,329.99
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1.5x scale
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.