Finding the Fourth Proportional to 312,442.71, 431,170.28 and 169,202.31
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Solution
The fourth proportional to 312,442.71, 431,170.28 and 169,202.31 is: 233,498.82
Step by Step Solution
- Step 1: Write the proportion equation
312,442.71 : 431,170.28 = 169,202.31 : x - Step 2: Convert to fraction form
312,442.71/431,170.28 = 169,202.31/x - Step 3: Cross multiply
312,442.71x = 431,170.28 × 169,202.31 - Step 4: Simplify right side
312,442.71x = 72,955,004,377.48 - Step 5: Solve for x
x = 72,955,004,377.48/312,442.71 - Step 6: Final answer
x = 233,498.82
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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.