Finding the Fourth Proportional to 439,130.80, 605,992.61 and 248,140.09
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Solution
The fourth proportional to 439,130.80, 605,992.61 and 248,140.09 is: 342,428.86
Step by Step Solution
- Step 1: Write the proportion equation
439,130.80 : 605,992.61 = 248,140.09 : x - Step 2: Convert to fraction form
439,130.80/605,992.61 = 248,140.09/x - Step 3: Cross multiply
439,130.80x = 605,992.61 × 248,140.09 - Step 4: Simplify right side
439,130.80x = 150,371,059,890.10 - Step 5: Solve for x
x = 150,371,059,890.10/439,130.80 - Step 6: Final answer
x = 342,428.86
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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.