Finding the Fourth Proportional to 311,278.08, 429,565.52 and 177,142.08
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Solution
The fourth proportional to 311,278.08, 429,565.52 and 177,142.08 is: 244,457.08
Step by Step Solution
- Step 1: Write the proportion equation
311,278.08 : 429,565.52 = 177,142.08 : x - Step 2: Convert to fraction form
311,278.08/429,565.52 = 177,142.08/x - Step 3: Cross multiply
311,278.08x = 429,565.52 × 177,142.08 - Step 4: Simplify right side
311,278.08x = 76,094,129,709.08 - Step 5: Solve for x
x = 76,094,129,709.08/311,278.08 - Step 6: Final answer
x = 244,457.08
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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.