Finding the Fourth Proportional to 149,138.91, 223,708.41 and 122,788.31
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Solution
The fourth proportional to 149,138.91, 223,708.41 and 122,788.31 is: 184,182.49
Step by Step Solution
- Step 1: Write the proportion equation
149,138.91 : 223,708.41 = 122,788.31 : x - Step 2: Convert to fraction form
149,138.91/223,708.41 = 122,788.31/x - Step 3: Cross multiply
149,138.91x = 223,708.41 × 122,788.31 - Step 4: Simplify right side
149,138.91x = 27,468,776,478.15 - Step 5: Solve for x
x = 27,468,776,478.15/149,138.91 - Step 6: Final answer
x = 184,182.49
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.