Finding the Fourth Proportional to 230,921.80, 318,744.66 and 135,467.08
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Solution
The fourth proportional to 230,921.80, 318,744.66 and 135,467.08 is: 186,987.15
Step by Step Solution
- Step 1: Write the proportion equation
230,921.80 : 318,744.66 = 135,467.08 : x - Step 2: Convert to fraction form
230,921.80/318,744.66 = 135,467.08/x - Step 3: Cross multiply
230,921.80x = 318,744.66 × 135,467.08 - Step 4: Simplify right side
230,921.80x = 43,179,408,355.79 - Step 5: Solve for x
x = 43,179,408,355.79/230,921.80 - Step 6: Final answer
x = 186,987.15
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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.