Finding the Fourth Proportional to 611,216.23, 916,616.73 and 211,763.75
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Solution
The fourth proportional to 611,216.23, 916,616.73 and 211,763.75 is: 317,573.70
Step by Step Solution
- Step 1: Write the proportion equation
611,216.23 : 916,616.73 = 211,763.75 : x - Step 2: Convert to fraction form
611,216.23/916,616.73 = 211,763.75/x - Step 3: Cross multiply
611,216.23x = 916,616.73 × 211,763.75 - Step 4: Simplify right side
611,216.23x = 194,106,200,695.93 - Step 5: Solve for x
x = 194,106,200,695.93/611,216.23 - Step 6: Final answer
x = 317,573.70
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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.