Finding the Fourth Proportional to 211,319.28, 291,628.08 and 115,825.95
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Solution
The fourth proportional to 211,319.28, 291,628.08 and 115,825.95 is: 159,843.91
Step by Step Solution
- Step 1: Write the proportion equation
211,319.28 : 291,628.08 = 115,825.95 : x - Step 2: Convert to fraction form
211,319.28/291,628.08 = 115,825.95/x - Step 3: Cross multiply
211,319.28x = 291,628.08 × 115,825.95 - Step 4: Simplify right side
211,319.28x = 33,778,099,412.68 - Step 5: Solve for x
x = 33,778,099,412.68/211,319.28 - Step 6: Final answer
x = 159,843.91
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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.