Finding the Fourth Proportional to 177,926.80, 266,890.20 and 72,821.20
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Solution
The fourth proportional to 177,926.80, 266,890.20 and 72,821.20 is: 109,231.80
Step by Step Solution
- Step 1: Write the proportion equation
177,926.80 : 266,890.20 = 72,821.20 : x - Step 2: Convert to fraction form
177,926.80/266,890.20 = 72,821.20/x - Step 3: Cross multiply
177,926.80x = 266,890.20 × 72,821.20 - Step 4: Simplify right side
177,926.80x = 19,435,264,632.24 - Step 5: Solve for x
x = 19,435,264,632.24/177,926.80 - Step 6: Final answer
x = 109,231.80
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1.5x scale
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.