Finding the Fourth Proportional to 211,133.68, 291,353.64 and 115,621.92
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Solution
The fourth proportional to 211,133.68, 291,353.64 and 115,621.92 is: 159,552.31
Step by Step Solution
- Step 1: Write the proportion equation
211,133.68 : 291,353.64 = 115,621.92 : x - Step 2: Convert to fraction form
211,133.68/291,353.64 = 115,621.92/x - Step 3: Cross multiply
211,133.68x = 291,353.64 × 115,621.92 - Step 4: Simplify right side
211,133.68x = 33,686,867,255.79 - Step 5: Solve for x
x = 33,686,867,255.79/211,133.68 - Step 6: Final answer
x = 159,552.31
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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.