Finding the Fourth Proportional to 339,810.39, 509,728.55 and 173,403.99
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Solution
The fourth proportional to 339,810.39, 509,728.55 and 173,403.99 is: 260,112.60
Step by Step Solution
- Step 1: Write the proportion equation
339,810.39 : 509,728.55 = 173,403.99 : x - Step 2: Convert to fraction form
339,810.39/509,728.55 = 173,403.99/x - Step 3: Cross multiply
339,810.39x = 509,728.55 × 173,403.99 - Step 4: Simplify right side
339,810.39x = 88,388,963,519.89 - Step 5: Solve for x
x = 88,388,963,519.89/339,810.39 - Step 6: Final answer
x = 260,112.60
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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.