Finding the Fourth Proportional to 387,860.99, 582,336.42 and 198,457.18
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Solution
The fourth proportional to 387,860.99, 582,336.42 and 198,457.18 is: 297,964.59
Step by Step Solution
- Step 1: Write the proportion equation
387,860.99 : 582,336.42 = 198,457.18 : x - Step 2: Convert to fraction form
387,860.99/582,336.42 = 198,457.18/x - Step 3: Cross multiply
387,860.99x = 582,336.42 × 198,457.18 - Step 4: Simplify right side
387,860.99x = 115,568,842,268.66 - Step 5: Solve for x
x = 115,568,842,268.66/387,860.99 - Step 6: Final answer
x = 297,964.59
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.