Finding the Fourth Proportional to 403,125.57, 556,315.29 and 221,832.99
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Solution
The fourth proportional to 403,125.57, 556,315.29 and 221,832.99 is: 306,130.63
Step by Step Solution
- Step 1: Write the proportion equation
403,125.57 : 556,315.29 = 221,832.99 : x - Step 2: Convert to fraction form
403,125.57/556,315.29 = 221,832.99/x - Step 3: Cross multiply
403,125.57x = 556,315.29 × 221,832.99 - Step 4: Simplify right side
403,125.57x = 123,409,084,163.42 - Step 5: Solve for x
x = 123,409,084,163.42/403,125.57 - Step 6: Final answer
x = 306,130.63
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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.