Finding the Fourth Proportional to 211,503.44, 317,154.72 and 122,784.20
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Solution
The fourth proportional to 211,503.44, 317,154.72 and 122,784.20 is: 184,117.99
Step by Step Solution
- Step 1: Write the proportion equation
211,503.44 : 317,154.72 = 122,784.20 : x - Step 2: Convert to fraction form
211,503.44/317,154.72 = 122,784.20/x - Step 3: Cross multiply
211,503.44x = 317,154.72 × 122,784.20 - Step 4: Simplify right side
211,503.44x = 38,941,588,571.42 - Step 5: Solve for x
x = 38,941,588,571.42/211,503.44 - Step 6: Final answer
x = 184,117.99
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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.