Finding the Fourth Proportional to 311,475.16, 467,251.82 and 121,911.06
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Solution
The fourth proportional to 311,475.16, 467,251.82 and 121,911.06 is: 182,881.89
Step by Step Solution
- Step 1: Write the proportion equation
311,475.16 : 467,251.82 = 121,911.06 : x - Step 2: Convert to fraction form
311,475.16/467,251.82 = 121,911.06/x - Step 3: Cross multiply
311,475.16x = 467,251.82 × 121,911.06 - Step 4: Simplify right side
311,475.16x = 56,963,164,663.13 - Step 5: Solve for x
x = 56,963,164,663.13/311,475.16 - Step 6: Final answer
x = 182,881.89
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.