Finding the Fourth Proportional to 219,492.18, 302,893.02 and 128,846.70
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Solution
The fourth proportional to 219,492.18, 302,893.02 and 128,846.70 is: 177,804.81
Step by Step Solution
- Step 1: Write the proportion equation
219,492.18 : 302,893.02 = 128,846.70 : x - Step 2: Convert to fraction form
219,492.18/302,893.02 = 128,846.70/x - Step 3: Cross multiply
219,492.18x = 302,893.02 × 128,846.70 - Step 4: Simplify right side
219,492.18x = 39,026,766,080.03 - Step 5: Solve for x
x = 39,026,766,080.03/219,492.18 - Step 6: Final answer
x = 177,804.81
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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.