Finding the Fourth Proportional to 291,703.80, 436,583.70 and 211,513.80
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Solution
The fourth proportional to 291,703.80, 436,583.70 and 211,513.80 is: 316,565.90
Step by Step Solution
- Step 1: Write the proportion equation
291,703.80 : 436,583.70 = 211,513.80 : x - Step 2: Convert to fraction form
291,703.80/436,583.70 = 211,513.80/x - Step 3: Cross multiply
291,703.80x = 436,583.70 × 211,513.80 - Step 4: Simplify right side
291,703.80x = 92,343,477,405.06 - Step 5: Solve for x
x = 92,343,477,405.06/291,703.80 - Step 6: Final answer
x = 316,565.90
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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.