Finding the Fourth Proportional to 319,671.86, 441,144.99 and 176,431.90
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Solution
The fourth proportional to 319,671.86, 441,144.99 and 176,431.90 is: 243,474.82
Step by Step Solution
- Step 1: Write the proportion equation
319,671.86 : 441,144.99 = 176,431.90 : x - Step 2: Convert to fraction form
319,671.86/441,144.99 = 176,431.90/x - Step 3: Cross multiply
319,671.86x = 441,144.99 × 176,431.90 - Step 4: Simplify right side
319,671.86x = 77,832,048,761.18 - Step 5: Solve for x
x = 77,832,048,761.18/319,671.86 - Step 6: Final answer
x = 243,474.82
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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.