Finding the Fourth Proportional to 187,431.23, 258,386.07 and 133,622.83
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Solution
The fourth proportional to 187,431.23, 258,386.07 and 133,622.83 is: 184,207.70
Step by Step Solution
- Step 1: Write the proportion equation
187,431.23 : 258,386.07 = 133,622.83 : x - Step 2: Convert to fraction form
187,431.23/258,386.07 = 133,622.83/x - Step 3: Cross multiply
187,431.23x = 258,386.07 × 133,622.83 - Step 4: Simplify right side
187,431.23x = 34,526,276,614.05 - Step 5: Solve for x
x = 34,526,276,614.05/187,431.23 - Step 6: Final answer
x = 184,207.70
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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.