Finding the Fourth Proportional to 407,531.40, 611,588.70 and 171,043.80
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Solution
The fourth proportional to 407,531.40, 611,588.70 and 171,043.80 is: 256,688.09
Step by Step Solution
- Step 1: Write the proportion equation
407,531.40 : 611,588.70 = 171,043.80 : x - Step 2: Convert to fraction form
407,531.40/611,588.70 = 171,043.80/x - Step 3: Cross multiply
407,531.40x = 611,588.70 × 171,043.80 - Step 4: Simplify right side
407,531.40x = 104,608,455,285.06 - Step 5: Solve for x
x = 104,608,455,285.06/407,531.40 - Step 6: Final answer
x = 256,688.09
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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.