Finding the Fourth Proportional to 311,422.95, 429,763.68 and 168,183.03
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Solution
The fourth proportional to 311,422.95, 429,763.68 and 168,183.03 is: 232,092.59
Step by Step Solution
- Step 1: Write the proportion equation
311,422.95 : 429,763.68 = 168,183.03 : x - Step 2: Convert to fraction form
311,422.95/429,763.68 = 168,183.03/x - Step 3: Cross multiply
311,422.95x = 429,763.68 × 168,183.03 - Step 4: Simplify right side
311,422.95x = 72,278,957,886.35 - Step 5: Solve for x
x = 72,278,957,886.35/311,422.95 - Step 6: Final answer
x = 232,092.59
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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.