Finding the Fourth Proportional to 187,438.26, 258,658.38 and 106,891.74
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Solution
The fourth proportional to 187,438.26, 258,658.38 and 106,891.74 is: 147,506.94
Step by Step Solution
- Step 1: Write the proportion equation
187,438.26 : 258,658.38 = 106,891.74 : x - Step 2: Convert to fraction form
187,438.26/258,658.38 = 106,891.74/x - Step 3: Cross multiply
187,438.26x = 258,658.38 × 106,891.74 - Step 4: Simplify right side
187,438.26x = 27,648,444,303.78 - Step 5: Solve for x
x = 27,648,444,303.78/187,438.26 - Step 6: Final answer
x = 147,506.94
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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.