Finding the Fourth Proportional to 229,790.48, 317,104.68 and 129,194.96
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Solution
The fourth proportional to 229,790.48, 317,104.68 and 129,194.96 is: 178,285.57
Step by Step Solution
- Step 1: Write the proportion equation
229,790.48 : 317,104.68 = 129,194.96 : x - Step 2: Convert to fraction form
229,790.48/317,104.68 = 129,194.96/x - Step 3: Cross multiply
229,790.48x = 317,104.68 × 129,194.96 - Step 4: Simplify right side
229,790.48x = 40,968,326,448.41 - Step 5: Solve for x
x = 40,968,326,448.41/229,790.48 - Step 6: Final answer
x = 178,285.57
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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.