Finding the Fourth Proportional to 211,032.41, 291,218.09 and 115,533.41
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Solution
The fourth proportional to 211,032.41, 291,218.09 and 115,533.41 is: 159,432.47
Step by Step Solution
- Step 1: Write the proportion equation
211,032.41 : 291,218.09 = 115,533.41 : x - Step 2: Convert to fraction form
211,032.41/291,218.09 = 115,533.41/x - Step 3: Cross multiply
211,032.41x = 291,218.09 × 115,533.41 - Step 4: Simplify right side
211,032.41x = 33,645,416,957.63 - Step 5: Solve for x
x = 33,645,416,957.63/211,032.41 - Step 6: Final answer
x = 159,432.47
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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.