Finding the Fourth Proportional to 230,211.63, 317,618.96 and 129,590.19
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Solution
The fourth proportional to 230,211.63, 317,618.96 and 129,590.19 is: 178,793.32
Step by Step Solution
- Step 1: Write the proportion equation
230,211.63 : 317,618.96 = 129,590.19 : x - Step 2: Convert to fraction form
230,211.63/317,618.96 = 129,590.19/x - Step 3: Cross multiply
230,211.63x = 317,618.96 × 129,590.19 - Step 4: Simplify right side
230,211.63x = 41,160,300,726.05 - Step 5: Solve for x
x = 41,160,300,726.05/230,211.63 - Step 6: Final answer
x = 178,793.32
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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.