Finding the Fourth Proportional to 339,854.71, 509,782.03 and 161,821.98
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Solution
The fourth proportional to 339,854.71, 509,782.03 and 161,821.98 is: 242,732.95
Step by Step Solution
- Step 1: Write the proportion equation
339,854.71 : 509,782.03 = 161,821.98 : x - Step 2: Convert to fraction form
339,854.71/509,782.03 = 161,821.98/x - Step 3: Cross multiply
339,854.71x = 509,782.03 × 161,821.98 - Step 4: Simplify right side
339,854.71x = 82,493,937,463.02 - Step 5: Solve for x
x = 82,493,937,463.02/339,854.71 - Step 6: Final answer
x = 242,732.95
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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.