Finding the Fourth Proportional to 311,501.53, 429,872.05 and 168,261.58
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Solution
The fourth proportional to 311,501.53, 429,872.05 and 168,261.58 is: 232,200.95
Step by Step Solution
- Step 1: Write the proportion equation
311,501.53 : 429,872.05 = 168,261.58 : x - Step 2: Convert to fraction form
311,501.53/429,872.05 = 168,261.58/x - Step 3: Cross multiply
311,501.53x = 429,872.05 × 168,261.58 - Step 4: Simplify right side
311,501.53x = 72,330,950,330.84 - Step 5: Solve for x
x = 72,330,950,330.84/311,501.53 - Step 6: Final answer
x = 232,200.95
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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.