Finding the Fourth Proportional to 311,536.36, 429,919.62 and 168,295.96
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Solution
The fourth proportional to 311,536.36, 429,919.62 and 168,295.96 is: 232,248.12
Step by Step Solution
- Step 1: Write the proportion equation
311,536.36 : 429,919.62 = 168,295.96 : x - Step 2: Convert to fraction form
311,536.36/429,919.62 = 168,295.96/x - Step 3: Cross multiply
311,536.36x = 429,919.62 × 168,295.96 - Step 4: Simplify right side
311,536.36x = 72,353,735,170.74 - Step 5: Solve for x
x = 72,353,735,170.74/311,536.36 - Step 6: Final answer
x = 232,248.12
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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.