Finding the Fourth Proportional to 406,265.42, 609,396.62 and 121,954.75
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Solution
The fourth proportional to 406,265.42, 609,396.62 and 121,954.75 is: 182,931.67
Step by Step Solution
- Step 1: Write the proportion equation
406,265.42 : 609,396.62 = 121,954.75 : x - Step 2: Convert to fraction form
406,265.42/609,396.62 = 121,954.75/x - Step 3: Cross multiply
406,265.42x = 609,396.62 × 121,954.75 - Step 4: Simplify right side
406,265.42x = 74,318,810,309.68 - Step 5: Solve for x
x = 74,318,810,309.68/406,265.42 - Step 6: Final answer
x = 182,931.67
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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.