Finding the Fourth Proportional to 187,633.84, 258,959.28 and 107,042.80
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Solution
The fourth proportional to 187,633.84, 258,959.28 and 107,042.80 is: 147,733.09
Step by Step Solution
- Step 1: Write the proportion equation
187,633.84 : 258,959.28 = 107,042.80 : x - Step 2: Convert to fraction form
187,633.84/258,959.28 = 107,042.80/x - Step 3: Cross multiply
187,633.84x = 258,959.28 × 107,042.80 - Step 4: Simplify right side
187,633.84x = 27,719,726,417.18 - Step 5: Solve for x
x = 27,719,726,417.18/187,633.84 - Step 6: Final answer
x = 147,733.09
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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.