Finding the Fourth Proportional to 239,621.75, 330,678.02 and 133,637.75
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Solution
The fourth proportional to 239,621.75, 330,678.02 and 133,637.75 is: 184,420.10
Step by Step Solution
- Step 1: Write the proportion equation
239,621.75 : 330,678.02 = 133,637.75 : x - Step 2: Convert to fraction form
239,621.75/330,678.02 = 133,637.75/x - Step 3: Cross multiply
239,621.75x = 330,678.02 × 133,637.75 - Step 4: Simplify right side
239,621.75x = 44,191,066,567.26 - Step 5: Solve for x
x = 44,191,066,567.26/239,621.75 - Step 6: Final answer
x = 184,420.10
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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.