Finding the Fourth Proportional to 187,207.80, 258,393.20 and 106,683.09
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Solution
The fourth proportional to 187,207.80, 258,393.20 and 106,683.09 is: 147,249.12
Step by Step Solution
- Step 1: Write the proportion equation
187,207.80 : 258,393.20 = 106,683.09 : x - Step 2: Convert to fraction form
187,207.80/258,393.20 = 106,683.09/x - Step 3: Cross multiply
187,207.80x = 258,393.20 × 106,683.09 - Step 4: Simplify right side
187,207.80x = 27,566,184,477.57 - Step 5: Solve for x
x = 27,566,184,477.57/187,207.80 - Step 6: Final answer
x = 147,249.12
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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.