Finding the Fourth Proportional to 147,385.94, 221,121.99 and 47,543.94
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Solution
The fourth proportional to 147,385.94, 221,121.99 and 47,543.94 is: 71,329.81
Step by Step Solution
- Step 1: Write the proportion equation
147,385.94 : 221,121.99 = 47,543.94 : x - Step 2: Convert to fraction form
147,385.94/221,121.99 = 47,543.94/x - Step 3: Cross multiply
147,385.94x = 221,121.99 × 47,543.94 - Step 4: Simplify right side
147,385.94x = 10,513,010,625.24 - Step 5: Solve for x
x = 10,513,010,625.24/147,385.94 - Step 6: Final answer
x = 71,329.81
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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.