Finding the Fourth Proportional to 221,492.61, 305,553.40 and 144,977.99
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Solution
The fourth proportional to 221,492.61, 305,553.40 and 144,977.99 is: 199,999.97
Step by Step Solution
- Step 1: Write the proportion equation
221,492.61 : 305,553.40 = 144,977.99 : x - Step 2: Convert to fraction form
221,492.61/305,553.40 = 144,977.99/x - Step 3: Cross multiply
221,492.61x = 305,553.40 × 144,977.99 - Step 4: Simplify right side
221,492.61x = 44,298,515,879.45 - Step 5: Solve for x
x = 44,298,515,879.45/221,492.61 - Step 6: Final answer
x = 199,999.97
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.