Finding the Fourth Proportional to 339,783.17, 509,677.76 and 103,125.80
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Solution
The fourth proportional to 339,783.17, 509,677.76 and 103,125.80 is: 154,689.62
Step by Step Solution
- Step 1: Write the proportion equation
339,783.17 : 509,677.76 = 103,125.80 : x - Step 2: Convert to fraction form
339,783.17/509,677.76 = 103,125.80/x - Step 3: Cross multiply
339,783.17x = 509,677.76 × 103,125.80 - Step 4: Simplify right side
339,783.17x = 52,560,928,274.22 - Step 5: Solve for x
x = 52,560,928,274.22/339,783.17 - Step 6: Final answer
x = 154,689.62
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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.