Finding the Fourth Proportional to 211,221.60, 291,458.16 and 126,307.68
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Solution
The fourth proportional to 211,221.60, 291,458.16 and 126,307.68 is: 174,288.07
Step by Step Solution
- Step 1: Write the proportion equation
211,221.60 : 291,458.16 = 126,307.68 : x - Step 2: Convert to fraction form
211,221.60/291,458.16 = 126,307.68/x - Step 3: Cross multiply
211,221.60x = 291,458.16 × 126,307.68 - Step 4: Simplify right side
211,221.60x = 36,813,404,006.67 - Step 5: Solve for x
x = 36,813,404,006.67/211,221.60 - Step 6: Final answer
x = 174,288.07
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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.