Finding the Fourth Proportional to 155,438.23, 214,504.74 and 88,370.23
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Solution
The fourth proportional to 155,438.23, 214,504.74 and 88,370.23 is: 121,950.90
Step by Step Solution
- Step 1: Write the proportion equation
155,438.23 : 214,504.74 = 88,370.23 : x - Step 2: Convert to fraction form
155,438.23/214,504.74 = 88,370.23/x - Step 3: Cross multiply
155,438.23x = 214,504.74 × 88,370.23 - Step 4: Simplify right side
155,438.23x = 18,955,832,137.37 - Step 5: Solve for x
x = 18,955,832,137.37/155,438.23 - Step 6: Final answer
x = 121,950.90
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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.