Finding the Fourth Proportional to 291,894.60, 436,988.88 and 263,879.13
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Solution
The fourth proportional to 291,894.60, 436,988.88 and 263,879.13 is: 395,047.55
Step by Step Solution
- Step 1: Write the proportion equation
291,894.60 : 436,988.88 = 263,879.13 : x - Step 2: Convert to fraction form
291,894.60/436,988.88 = 263,879.13/x - Step 3: Cross multiply
291,894.60x = 436,988.88 × 263,879.13 - Step 4: Simplify right side
291,894.60x = 115,312,245,474.07 - Step 5: Solve for x
x = 115,312,245,474.07/291,894.60 - Step 6: Final answer
x = 395,047.55
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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.