Finding the Fourth Proportional to 211,178.84, 291,447.68 and 120,548.43
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Solution
The fourth proportional to 211,178.84, 291,447.68 and 120,548.43 is: 166,368.75
Step by Step Solution
- Step 1: Write the proportion equation
211,178.84 : 291,447.68 = 120,548.43 : x - Step 2: Convert to fraction form
211,178.84/291,447.68 = 120,548.43/x - Step 3: Cross multiply
211,178.84x = 291,447.68 × 120,548.43 - Step 4: Simplify right side
211,178.84x = 35,133,559,648.40 - Step 5: Solve for x
x = 35,133,559,648.40/211,178.84 - Step 6: Final answer
x = 166,368.75
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.