Finding the Fourth Proportional to 163,968.80, 245,953.20 and 51,663.20
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Solution
The fourth proportional to 163,968.80, 245,953.20 and 51,663.20 is: 77,494.80
Step by Step Solution
- Step 1: Write the proportion equation
163,968.80 : 245,953.20 = 51,663.20 : x - Step 2: Convert to fraction form
163,968.80/245,953.20 = 51,663.20/x - Step 3: Cross multiply
163,968.80x = 245,953.20 × 51,663.20 - Step 4: Simplify right side
163,968.80x = 12,706,729,362.24 - Step 5: Solve for x
x = 12,706,729,362.24/163,968.80 - Step 6: Final answer
x = 77,494.80
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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.