Finding the Fourth Proportional to 239,373.09, 330,319.85 and 131,937.21
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Solution
The fourth proportional to 239,373.09, 330,319.85 and 131,937.21 is: 182,065.07
Step by Step Solution
- Step 1: Write the proportion equation
239,373.09 : 330,319.85 = 131,937.21 : x - Step 2: Convert to fraction form
239,373.09/330,319.85 = 131,937.21/x - Step 3: Cross multiply
239,373.09x = 330,319.85 × 131,937.21 - Step 4: Simplify right side
239,373.09x = 43,581,478,756.93 - Step 5: Solve for x
x = 43,581,478,756.93/239,373.09 - Step 6: Final answer
x = 182,065.07
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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.