Finding the Fourth Proportional to 211,301.28, 291,596.88 and 115,808.80
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Solution
The fourth proportional to 211,301.28, 291,596.88 and 115,808.80 is: 159,816.75
Step by Step Solution
- Step 1: Write the proportion equation
211,301.28 : 291,596.88 = 115,808.80 : x - Step 2: Convert to fraction form
211,301.28/291,596.88 = 115,808.80/x - Step 3: Cross multiply
211,301.28x = 291,596.88 × 115,808.80 - Step 4: Simplify right side
211,301.28x = 33,769,484,756.54 - Step 5: Solve for x
x = 33,769,484,756.54/211,301.28 - Step 6: Final answer
x = 159,816.75
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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.