Finding the Fourth Proportional to 187,261.24, 258,421.38 and 102,378.28
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Solution
The fourth proportional to 187,261.24, 258,421.38 and 102,378.28 is: 141,282.50
Step by Step Solution
- Step 1: Write the proportion equation
187,261.24 : 258,421.38 = 102,378.28 : x - Step 2: Convert to fraction form
187,261.24/258,421.38 = 102,378.28/x - Step 3: Cross multiply
187,261.24x = 258,421.38 × 102,378.28 - Step 4: Simplify right side
187,261.24x = 26,456,736,399.63 - Step 5: Solve for x
x = 26,456,736,399.63/187,261.24 - Step 6: Final answer
x = 141,282.50
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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.