Finding the Fourth Proportional to 339,782.41, 509,676.64 and 103,125.05
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Solution
The fourth proportional to 339,782.41, 509,676.64 and 103,125.05 is: 154,688.49
Step by Step Solution
- Step 1: Write the proportion equation
339,782.41 : 509,676.64 = 103,125.05 : x - Step 2: Convert to fraction form
339,782.41/509,676.64 = 103,125.05/x - Step 3: Cross multiply
339,782.41x = 509,676.64 × 103,125.05 - Step 4: Simplify right side
339,782.41x = 52,560,428,088.92 - Step 5: Solve for x
x = 52,560,428,088.92/339,782.41 - Step 6: Final answer
x = 154,688.49
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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.