Finding the Fourth Proportional to 177,660.20, 266,490.30 and 72,421.80
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Solution
The fourth proportional to 177,660.20, 266,490.30 and 72,421.80 is: 108,632.70
Step by Step Solution
- Step 1: Write the proportion equation
177,660.20 : 266,490.30 = 72,421.80 : x - Step 2: Convert to fraction form
177,660.20/266,490.30 = 72,421.80/x - Step 3: Cross multiply
177,660.20x = 266,490.30 × 72,421.80 - Step 4: Simplify right side
177,660.20x = 19,299,707,208.54 - Step 5: Solve for x
x = 19,299,707,208.54/177,660.20 - Step 6: Final answer
x = 108,632.70
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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.