Finding the Fourth Proportional to 211,455.02, 291,727.86 and 134,976.98
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Solution
The fourth proportional to 211,455.02, 291,727.86 and 134,976.98 is: 186,217.12
Step by Step Solution
- Step 1: Write the proportion equation
211,455.02 : 291,727.86 = 134,976.98 : x - Step 2: Convert to fraction form
211,455.02/291,727.86 = 134,976.98/x - Step 3: Cross multiply
211,455.02x = 291,727.86 × 134,976.98 - Step 4: Simplify right side
211,455.02x = 39,376,545,524.66 - Step 5: Solve for x
x = 39,376,545,524.66/211,455.02 - Step 6: Final answer
x = 186,217.12
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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.