Finding the Fourth Proportional to 339,863.06, 509,761.47 and 103,207.79
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Solution
The fourth proportional to 339,863.06, 509,761.47 and 103,207.79 is: 154,801.62
Step by Step Solution
- Step 1: Write the proportion equation
339,863.06 : 509,761.47 = 103,207.79 : x - Step 2: Convert to fraction form
339,863.06/509,761.47 = 103,207.79/x - Step 3: Cross multiply
339,863.06x = 509,761.47 × 103,207.79 - Step 4: Simplify right side
339,863.06x = 52,611,352,197.04 - Step 5: Solve for x
x = 52,611,352,197.04/339,863.06 - Step 6: Final answer
x = 154,801.62
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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.