Finding the Fourth Proportional to 290,364.47, 399,776.06 and 247,751.99
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Solution
The fourth proportional to 290,364.47, 399,776.06 and 247,751.99 is: 341,106.87
Step by Step Solution
- Step 1: Write the proportion equation
290,364.47 : 399,776.06 = 247,751.99 : x - Step 2: Convert to fraction form
290,364.47/399,776.06 = 247,751.99/x - Step 3: Cross multiply
290,364.47x = 399,776.06 × 247,751.99 - Step 4: Simplify right side
290,364.47x = 99,045,313,039.86 - Step 5: Solve for x
x = 99,045,313,039.86/290,364.47 - Step 6: Final answer
x = 341,106.87
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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.