Finding the Fourth Proportional to 239,257.76, 330,173.06 and 137,299.26
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Solution
The fourth proportional to 239,257.76, 330,173.06 and 137,299.26 is: 189,471.46
Step by Step Solution
- Step 1: Write the proportion equation
239,257.76 : 330,173.06 = 137,299.26 : x - Step 2: Convert to fraction form
239,257.76/330,173.06 = 137,299.26/x - Step 3: Cross multiply
239,257.76x = 330,173.06 × 137,299.26 - Step 4: Simplify right side
239,257.76x = 45,332,516,809.94 - Step 5: Solve for x
x = 45,332,516,809.94/239,257.76 - Step 6: Final answer
x = 189,471.46
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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.