Finding the Fourth Proportional to 316,158.93, 474,239.21 and 129,170.43
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Solution
The fourth proportional to 316,158.93, 474,239.21 and 129,170.43 is: 193,755.98
Step by Step Solution
- Step 1: Write the proportion equation
316,158.93 : 474,239.21 = 129,170.43 : x - Step 2: Convert to fraction form
316,158.93/474,239.21 = 129,170.43/x - Step 3: Cross multiply
316,158.93x = 474,239.21 × 129,170.43 - Step 4: Simplify right side
316,158.93x = 61,257,682,032.71 - Step 5: Solve for x
x = 61,257,682,032.71/316,158.93 - Step 6: Final answer
x = 193,755.98
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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.