Finding the Fourth Proportional to 177,207.80, 265,811.70 and 77,415.80
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Solution
The fourth proportional to 177,207.80, 265,811.70 and 77,415.80 is: 116,123.70
Step by Step Solution
- Step 1: Write the proportion equation
177,207.80 : 265,811.70 = 77,415.80 : x - Step 2: Convert to fraction form
177,207.80/265,811.70 = 77,415.80/x - Step 3: Cross multiply
177,207.80x = 265,811.70 × 77,415.80 - Step 4: Simplify right side
177,207.80x = 20,578,025,404.86 - Step 5: Solve for x
x = 20,578,025,404.86/177,207.80 - Step 6: Final answer
x = 116,123.70
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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.