Finding the Fourth Proportional to 225,548.40, 311,257.98 and 127,432.08
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Solution
The fourth proportional to 225,548.40, 311,257.98 and 127,432.08 is: 175,856.94
Step by Step Solution
- Step 1: Write the proportion equation
225,548.40 : 311,257.98 = 127,432.08 : x - Step 2: Convert to fraction form
225,548.40/311,257.98 = 127,432.08/x - Step 3: Cross multiply
225,548.40x = 311,257.98 × 127,432.08 - Step 4: Simplify right side
225,548.40x = 39,664,251,808.00 - Step 5: Solve for x
x = 39,664,251,808.00/225,548.40 - Step 6: Final answer
x = 175,856.94
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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.