Finding the Fourth Proportional to 239,234.13, 330,190.91 and 137,328.48
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Solution
The fourth proportional to 239,234.13, 330,190.91 and 137,328.48 is: 189,540.75
Step by Step Solution
- Step 1: Write the proportion equation
239,234.13 : 330,190.91 = 137,328.48 : x - Step 2: Convert to fraction form
239,234.13/330,190.91 = 137,328.48/x - Step 3: Cross multiply
239,234.13x = 330,190.91 × 137,328.48 - Step 4: Simplify right side
239,234.13x = 45,344,615,780.12 - Step 5: Solve for x
x = 45,344,615,780.12/239,234.13 - Step 6: Final answer
x = 189,540.75
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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.