Finding the Fourth Proportional to 163,960.80, 245,941.20 and 51,655.20
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Solution
The fourth proportional to 163,960.80, 245,941.20 and 51,655.20 is: 77,482.80
Step by Step Solution
- Step 1: Write the proportion equation
163,960.80 : 245,941.20 = 51,655.20 : x - Step 2: Convert to fraction form
163,960.80/245,941.20 = 51,655.20/x - Step 3: Cross multiply
163,960.80x = 245,941.20 × 51,655.20 - Step 4: Simplify right side
163,960.80x = 12,704,141,874.24 - Step 5: Solve for x
x = 12,704,141,874.24/163,960.80 - Step 6: Final answer
x = 77,482.80
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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.