Finding the Fourth Proportional to 436,781.21, 655,175.48 and 121,262.72
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Solution
The fourth proportional to 436,781.21, 655,175.48 and 121,262.72 is: 181,895.09
Step by Step Solution
- Step 1: Write the proportion equation
436,781.21 : 655,175.48 = 121,262.72 : x - Step 2: Convert to fraction form
436,781.21/655,175.48 = 121,262.72/x - Step 3: Cross multiply
436,781.21x = 655,175.48 × 121,262.72 - Step 4: Simplify right side
436,781.21x = 79,448,356,899.91 - Step 5: Solve for x
x = 79,448,356,899.91/436,781.21 - Step 6: Final answer
x = 181,895.09
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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.