Finding the Fourth Proportional to 303,974.58, 455,969.70 and 144,013.08
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Solution
The fourth proportional to 303,974.58, 455,969.70 and 144,013.08 is: 216,023.33
Step by Step Solution
- Step 1: Write the proportion equation
303,974.58 : 455,969.70 = 144,013.08 : x - Step 2: Convert to fraction form
303,974.58/455,969.70 = 144,013.08/x - Step 3: Cross multiply
303,974.58x = 455,969.70 × 144,013.08 - Step 4: Simplify right side
303,974.58x = 65,665,600,883.68 - Step 5: Solve for x
x = 65,665,600,883.68/303,974.58 - Step 6: Final answer
x = 216,023.33
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1.5x scale
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.