Finding the Fourth Proportional to 311,486.01, 429,850.95 and 168,246.17
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Solution
The fourth proportional to 311,486.01, 429,850.95 and 168,246.17 is: 232,179.85
Step by Step Solution
- Step 1: Write the proportion equation
311,486.01 : 429,850.95 = 168,246.17 : x - Step 2: Convert to fraction form
311,486.01/429,850.95 = 168,246.17/x - Step 3: Cross multiply
311,486.01x = 429,850.95 × 168,246.17 - Step 4: Simplify right side
311,486.01x = 72,320,776,008.36 - Step 5: Solve for x
x = 72,320,776,008.36/311,486.01 - Step 6: Final answer
x = 232,179.85
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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.