Finding the Fourth Proportional to 211,328.99, 291,632.69 and 115,839.71
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Solution
The fourth proportional to 211,328.99, 291,632.69 and 115,839.71 is: 159,858.08
Step by Step Solution
- Step 1: Write the proportion equation
211,328.99 : 291,632.69 = 115,839.71 : x - Step 2: Convert to fraction form
211,328.99/291,632.69 = 115,839.71/x - Step 3: Cross multiply
211,328.99x = 291,632.69 × 115,839.71 - Step 4: Simplify right side
211,328.99x = 33,782,645,656.92 - Step 5: Solve for x
x = 33,782,645,656.92/211,328.99 - Step 6: Final answer
x = 159,858.08
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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.