Finding the Fourth Proportional to 291,209.99, 436,814.64 and 91,547.82
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Solution
The fourth proportional to 291,209.99, 436,814.64 and 91,547.82 is: 137,321.62
Step by Step Solution
- Step 1: Write the proportion equation
291,209.99 : 436,814.64 = 91,547.82 : x - Step 2: Convert to fraction form
291,209.99/436,814.64 = 91,547.82/x - Step 3: Cross multiply
291,209.99x = 436,814.64 × 91,547.82 - Step 4: Simplify right side
291,209.99x = 39,989,428,036.08 - Step 5: Solve for x
x = 39,989,428,036.08/291,209.99 - Step 6: Final answer
x = 137,321.62
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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.