Finding the Fourth Proportional to 211,317.52, 291,617.58 and 115,823.92
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Solution
The fourth proportional to 211,317.52, 291,617.58 and 115,823.92 is: 159,836.68
Step by Step Solution
- Step 1: Write the proportion equation
211,317.52 : 291,617.58 = 115,823.92 : x - Step 2: Convert to fraction form
211,317.52/291,617.58 = 115,823.92/x - Step 3: Cross multiply
211,317.52x = 291,617.58 × 115,823.92 - Step 4: Simplify right side
211,317.52x = 33,776,291,551.22 - Step 5: Solve for x
x = 33,776,291,551.22/211,317.52 - Step 6: Final answer
x = 159,836.68
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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.