Finding the Fourth Proportional to 239,622.75, 330,679.40 and 133,638.75
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Solution
The fourth proportional to 239,622.75, 330,679.40 and 133,638.75 is: 184,421.48
Step by Step Solution
- Step 1: Write the proportion equation
239,622.75 : 330,679.40 = 133,638.75 : x - Step 2: Convert to fraction form
239,622.75/330,679.40 = 133,638.75/x - Step 3: Cross multiply
239,622.75x = 330,679.40 × 133,638.75 - Step 4: Simplify right side
239,622.75x = 44,191,581,666.75 - Step 5: Solve for x
x = 44,191,581,666.75/239,622.75 - Step 6: Final answer
x = 184,421.48
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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.