Finding the Fourth Proportional to 187,257.13, 258,414.79 and 102,374.19
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Solution
The fourth proportional to 187,257.13, 258,414.79 and 102,374.19 is: 141,276.36
Step by Step Solution
- Step 1: Write the proportion equation
187,257.13 : 258,414.79 = 102,374.19 : x - Step 2: Convert to fraction form
187,257.13/258,414.79 = 102,374.19/x - Step 3: Cross multiply
187,257.13x = 258,414.79 × 102,374.19 - Step 4: Simplify right side
187,257.13x = 26,455,005,389.22 - Step 5: Solve for x
x = 26,455,005,389.22/187,257.13 - Step 6: Final answer
x = 141,276.36
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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.