Finding the Fourth Proportional to 287,322.88, 430,688.60 and 127,474.09
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Solution
The fourth proportional to 287,322.88, 430,688.60 and 127,474.09 is: 191,079.94
Step by Step Solution
- Step 1: Write the proportion equation
287,322.88 : 430,688.60 = 127,474.09 : x - Step 2: Convert to fraction form
287,322.88/430,688.60 = 127,474.09/x - Step 3: Cross multiply
287,322.88x = 430,688.60 × 127,474.09 - Step 4: Simplify right side
287,322.88x = 54,901,637,358.37 - Step 5: Solve for x
x = 54,901,637,358.37/287,322.88 - Step 6: Final answer
x = 191,079.94
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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.