Finding the Fourth Proportional to 339,780.90, 509,672.97 and 103,125.63
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Solution
The fourth proportional to 339,780.90, 509,672.97 and 103,125.63 is: 154,688.94
Step by Step Solution
- Step 1: Write the proportion equation
339,780.90 : 509,672.97 = 103,125.63 : x - Step 2: Convert to fraction form
339,780.90/509,672.97 = 103,125.63/x - Step 3: Cross multiply
339,780.90x = 509,672.97 × 103,125.63 - Step 4: Simplify right side
339,780.90x = 52,560,346,125.22 - Step 5: Solve for x
x = 52,560,346,125.22/339,780.90 - Step 6: Final answer
x = 154,688.94
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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.