Finding the Fourth Proportional to 211,088.76, 291,289.14 and 115,596.60
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Solution
The fourth proportional to 211,088.76, 291,289.14 and 115,596.60 is: 159,516.00
Step by Step Solution
- Step 1: Write the proportion equation
211,088.76 : 291,289.14 = 115,596.60 : x - Step 2: Convert to fraction form
211,088.76/291,289.14 = 115,596.60/x - Step 3: Cross multiply
211,088.76x = 291,289.14 × 115,596.60 - Step 4: Simplify right side
211,088.76x = 33,672,034,200.92 - Step 5: Solve for x
x = 33,672,034,200.92/211,088.76 - Step 6: Final answer
x = 159,516.00
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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.