Finding the Fourth Proportional to 311,760.28, 430,228.99 and 168,520.32
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Solution
The fourth proportional to 311,760.28, 430,228.99 and 168,520.32 is: 232,557.94
Step by Step Solution
- Step 1: Write the proportion equation
311,760.28 : 430,228.99 = 168,520.32 : x - Step 2: Convert to fraction form
311,760.28/430,228.99 = 168,520.32/x - Step 3: Cross multiply
311,760.28x = 430,228.99 × 168,520.32 - Step 4: Simplify right side
311,760.28x = 72,502,326,646.78 - Step 5: Solve for x
x = 72,502,326,646.78/311,760.28 - Step 6: Final answer
x = 232,557.94
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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.