Finding the Fourth Proportional to 187,221.52, 258,365.68 and 102,338.92
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Solution
The fourth proportional to 187,221.52, 258,365.68 and 102,338.92 is: 141,227.70
Step by Step Solution
- Step 1: Write the proportion equation
187,221.52 : 258,365.68 = 102,338.92 : x - Step 2: Convert to fraction form
187,221.52/258,365.68 = 102,338.92/x - Step 3: Cross multiply
187,221.52x = 258,365.68 × 102,338.92 - Step 4: Simplify right side
187,221.52x = 26,440,864,656.27 - Step 5: Solve for x
x = 26,440,864,656.27/187,221.52 - Step 6: Final answer
x = 141,227.70
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1.5x scale
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.