Finding the Fourth Proportional to 371,903.40, 557,850.18 and 91,423.08
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Solution
The fourth proportional to 371,903.40, 557,850.18 and 91,423.08 is: 137,133.41
Step by Step Solution
- Step 1: Write the proportion equation
371,903.40 : 557,850.18 = 91,423.08 : x - Step 2: Convert to fraction form
371,903.40/557,850.18 = 91,423.08/x - Step 3: Cross multiply
371,903.40x = 557,850.18 × 91,423.08 - Step 4: Simplify right side
371,903.40x = 51,000,381,634.15 - Step 5: Solve for x
x = 51,000,381,634.15/371,903.40 - Step 6: Final answer
x = 137,133.41
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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.