Finding the Fourth Proportional to 343,493.18, 473,986.71 and 190,528.70
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Solution
The fourth proportional to 343,493.18, 473,986.71 and 190,528.70 is: 262,910.81
Step by Step Solution
- Step 1: Write the proportion equation
343,493.18 : 473,986.71 = 190,528.70 : x - Step 2: Convert to fraction form
343,493.18/473,986.71 = 190,528.70/x - Step 3: Cross multiply
343,493.18x = 473,986.71 × 190,528.70 - Step 4: Simplify right side
343,493.18x = 90,308,071,673.58 - Step 5: Solve for x
x = 90,308,071,673.58/343,493.18 - Step 6: Final answer
x = 262,910.81
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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.