Finding the Fourth Proportional to 318,453.09, 439,661.61 and 219,168.75
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Solution
The fourth proportional to 318,453.09, 439,661.61 and 219,168.75 is: 302,588.01
Step by Step Solution
- Step 1: Write the proportion equation
318,453.09 : 439,661.61 = 219,168.75 : x - Step 2: Convert to fraction form
318,453.09/439,661.61 = 219,168.75/x - Step 3: Cross multiply
318,453.09x = 439,661.61 × 219,168.75 - Step 4: Simplify right side
318,453.09x = 96,360,085,486.69 - Step 5: Solve for x
x = 96,360,085,486.69/318,453.09 - Step 6: Final answer
x = 302,588.01
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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.