Finding the Fourth Proportional to 291,716.80, 436,603.20 and 211,526.80
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Solution
The fourth proportional to 291,716.80, 436,603.20 and 211,526.80 is: 316,585.39
Step by Step Solution
- Step 1: Write the proportion equation
291,716.80 : 436,603.20 = 211,526.80 : x - Step 2: Convert to fraction form
291,716.80/436,603.20 = 211,526.80/x - Step 3: Cross multiply
291,716.80x = 436,603.20 × 211,526.80 - Step 4: Simplify right side
291,716.80x = 92,353,277,765.76 - Step 5: Solve for x
x = 92,353,277,765.76/291,716.80 - Step 6: Final answer
x = 316,585.39
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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.