Finding the Fourth Proportional to 316,184.47, 436,476.90 and 201,616.68
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Solution
The fourth proportional to 316,184.47, 436,476.90 and 201,616.68 is: 278,321.78
Step by Step Solution
- Step 1: Write the proportion equation
316,184.47 : 436,476.90 = 201,616.68 : x - Step 2: Convert to fraction form
316,184.47/436,476.90 = 201,616.68/x - Step 3: Cross multiply
316,184.47x = 436,476.90 × 201,616.68 - Step 4: Simplify right side
316,184.47x = 88,001,023,474.69 - Step 5: Solve for x
x = 88,001,023,474.69/316,184.47 - Step 6: Final answer
x = 278,321.78
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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.