Finding the Fourth Proportional to 228,476.24, 315,288.70 and 126,499.68
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Solution
The fourth proportional to 228,476.24, 315,288.70 and 126,499.68 is: 174,564.85
Step by Step Solution
- Step 1: Write the proportion equation
228,476.24 : 315,288.70 = 126,499.68 : x - Step 2: Convert to fraction form
228,476.24/315,288.70 = 126,499.68/x - Step 3: Cross multiply
228,476.24x = 315,288.70 × 126,499.68 - Step 4: Simplify right side
228,476.24x = 39,883,919,657.62 - Step 5: Solve for x
x = 39,883,919,657.62/228,476.24 - Step 6: Final answer
x = 174,564.85
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.