Finding the Fourth Proportional to 310,437.68, 428,329.26 and 181,302.92
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Solution
The fourth proportional to 310,437.68, 428,329.26 and 181,302.92 is: 250,154.38
Step by Step Solution
- Step 1: Write the proportion equation
310,437.68 : 428,329.26 = 181,302.92 : x - Step 2: Convert to fraction form
310,437.68/428,329.26 = 181,302.92/x - Step 3: Cross multiply
310,437.68x = 428,329.26 × 181,302.92 - Step 4: Simplify right side
310,437.68x = 77,657,345,559.44 - Step 5: Solve for x
x = 77,657,345,559.44/310,437.68 - Step 6: Final answer
x = 250,154.38
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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.