Finding the Fourth Proportional to 177,880.80, 266,821.20 and 72,775.20
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Solution
The fourth proportional to 177,880.80, 266,821.20 and 72,775.20 is: 109,162.80
Step by Step Solution
- Step 1: Write the proportion equation
177,880.80 : 266,821.20 = 72,775.20 : x - Step 2: Convert to fraction form
177,880.80/266,821.20 = 72,775.20/x - Step 3: Cross multiply
177,880.80x = 266,821.20 × 72,775.20 - Step 4: Simplify right side
177,880.80x = 19,417,966,194.24 - Step 5: Solve for x
x = 19,417,966,194.24/177,880.80 - Step 6: Final answer
x = 109,162.80
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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.