Finding the Fourth Proportional to 177,864.80, 266,797.20 and 72,759.20
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Solution
The fourth proportional to 177,864.80, 266,797.20 and 72,759.20 is: 109,138.80
Step by Step Solution
- Step 1: Write the proportion equation
177,864.80 : 266,797.20 = 72,759.20 : x - Step 2: Convert to fraction form
177,864.80/266,797.20 = 72,759.20/x - Step 3: Cross multiply
177,864.80x = 266,797.20 × 72,759.20 - Step 4: Simplify right side
177,864.80x = 19,411,950,834.24 - Step 5: Solve for x
x = 19,411,950,834.24/177,864.80 - Step 6: Final answer
x = 109,138.80
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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.