Finding the Fourth Proportional to 436,476.88, 654,742.99 and 136,969.28
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Solution
The fourth proportional to 436,476.88, 654,742.99 and 136,969.28 is: 205,462.60
Step by Step Solution
- Step 1: Write the proportion equation
436,476.88 : 654,742.99 = 136,969.28 : x - Step 2: Convert to fraction form
436,476.88/654,742.99 = 136,969.28/x - Step 3: Cross multiply
436,476.88x = 654,742.99 × 136,969.28 - Step 4: Simplify right side
436,476.88x = 89,679,672,309.21 - Step 5: Solve for x
x = 89,679,672,309.21/436,476.88 - Step 6: Final answer
x = 205,462.60
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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.