Finding the Fourth Proportional to 211,023.14, 291,217.02 and 115,529.54
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Solution
The fourth proportional to 211,023.14, 291,217.02 and 115,529.54 is: 159,433.55
Step by Step Solution
- Step 1: Write the proportion equation
211,023.14 : 291,217.02 = 115,529.54 : x - Step 2: Convert to fraction form
211,023.14/291,217.02 = 115,529.54/x - Step 3: Cross multiply
211,023.14x = 291,217.02 × 115,529.54 - Step 4: Simplify right side
211,023.14x = 33,644,168,360.77 - Step 5: Solve for x
x = 33,644,168,360.77/211,023.14 - Step 6: Final answer
x = 159,433.55
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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.