Finding the Fourth Proportional to 163,838.40, 225,955.68 and 127,972.80
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Solution
The fourth proportional to 163,838.40, 225,955.68 and 127,972.80 is: 176,492.09
Step by Step Solution
- Step 1: Write the proportion equation
163,838.40 : 225,955.68 = 127,972.80 : x - Step 2: Convert to fraction form
163,838.40/225,955.68 = 127,972.80/x - Step 3: Cross multiply
163,838.40x = 225,955.68 × 127,972.80 - Step 4: Simplify right side
163,838.40x = 28,916,181,045.50 - Step 5: Solve for x
x = 28,916,181,045.50/163,838.40 - Step 6: Final answer
x = 176,492.09
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1.5x scale
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.