Finding the Fourth Proportional to 316,163.71, 474,270.41 and 91,527.63
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Solution
The fourth proportional to 316,163.71, 474,270.41 and 91,527.63 is: 137,298.64
Step by Step Solution
- Step 1: Write the proportion equation
316,163.71 : 474,270.41 = 91,527.63 : x - Step 2: Convert to fraction form
316,163.71/474,270.41 = 91,527.63/x - Step 3: Cross multiply
316,163.71x = 474,270.41 × 91,527.63 - Step 4: Simplify right side
316,163.71x = 43,408,846,606.43 - Step 5: Solve for x
x = 43,408,846,606.43/316,163.71 - Step 6: Final answer
x = 137,298.64
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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.