Finding the Fourth Proportional to 315,893.31, 473,770.09 and 91,204.84
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Solution
The fourth proportional to 315,893.31, 473,770.09 and 91,204.84 is: 136,787.09
Step by Step Solution
- Step 1: Write the proportion equation
315,893.31 : 473,770.09 = 91,204.84 : x - Step 2: Convert to fraction form
315,893.31/473,770.09 = 91,204.84/x - Step 3: Cross multiply
315,893.31x = 473,770.09 × 91,204.84 - Step 4: Simplify right side
315,893.31x = 43,210,125,255.24 - Step 5: Solve for x
x = 43,210,125,255.24/315,893.31 - Step 6: Final answer
x = 136,787.09
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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.