Finding the Fourth Proportional to 387,478.94, 581,217.57 and 106,995.38
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Solution
The fourth proportional to 387,478.94, 581,217.57 and 106,995.38 is: 160,492.83
Step by Step Solution
- Step 1: Write the proportion equation
387,478.94 : 581,217.57 = 106,995.38 : x - Step 2: Convert to fraction form
387,478.94/581,217.57 = 106,995.38/x - Step 3: Cross multiply
387,478.94x = 581,217.57 × 106,995.38 - Step 4: Simplify right side
387,478.94x = 62,187,591,858.74 - Step 5: Solve for x
x = 62,187,591,858.74/387,478.94 - Step 6: Final answer
x = 160,492.83
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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.