Finding the Fourth Proportional to 321,886.74, 482,830.08 and 171,671.94
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Solution
The fourth proportional to 321,886.74, 482,830.08 and 171,671.94 is: 257,507.89
Step by Step Solution
- Step 1: Write the proportion equation
321,886.74 : 482,830.08 = 171,671.94 : x - Step 2: Convert to fraction form
321,886.74/482,830.08 = 171,671.94/x - Step 3: Cross multiply
321,886.74x = 482,830.08 × 171,671.94 - Step 4: Simplify right side
321,886.74x = 82,888,376,523.96 - Step 5: Solve for x
x = 82,888,376,523.96/321,886.74 - Step 6: Final answer
x = 257,507.89
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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.