Finding the Fourth Proportional to 309,213.99, 463,814.43 and 84,574.44
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Solution
The fourth proportional to 309,213.99, 463,814.43 and 84,574.44 is: 126,859.87
Step by Step Solution
- Step 1: Write the proportion equation
309,213.99 : 463,814.43 = 84,574.44 : x - Step 2: Convert to fraction form
309,213.99/463,814.43 = 84,574.44/x - Step 3: Cross multiply
309,213.99x = 463,814.43 × 84,574.44 - Step 4: Simplify right side
309,213.99x = 39,226,845,681.17 - Step 5: Solve for x
x = 39,226,845,681.17/309,213.99 - Step 6: Final answer
x = 126,859.87
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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.