Finding the Fourth Proportional to 187,228.72, 258,357.36 and 106,649.92
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Solution
The fourth proportional to 187,228.72, 258,357.36 and 106,649.92 is: 147,166.48
Step by Step Solution
- Step 1: Write the proportion equation
187,228.72 : 258,357.36 = 106,649.92 : x - Step 2: Convert to fraction form
187,228.72/258,357.36 = 106,649.92/x - Step 3: Cross multiply
187,228.72x = 258,357.36 × 106,649.92 - Step 4: Simplify right side
187,228.72x = 27,553,791,775.41 - Step 5: Solve for x
x = 27,553,791,775.41/187,228.72 - Step 6: Final answer
x = 147,166.48
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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.