Finding the Fourth Proportional to 187,385.58, 258,598.71 and 106,800.09
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Solution
The fourth proportional to 187,385.58, 258,598.71 and 106,800.09 is: 147,387.89
Step by Step Solution
- Step 1: Write the proportion equation
187,385.58 : 258,598.71 = 106,800.09 : x - Step 2: Convert to fraction form
187,385.58/258,598.71 = 106,800.09/x - Step 3: Cross multiply
187,385.58x = 258,598.71 × 106,800.09 - Step 4: Simplify right side
187,385.58x = 27,618,365,501.88 - Step 5: Solve for x
x = 27,618,365,501.88/187,385.58 - Step 6: Final answer
x = 147,387.89
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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.