Finding the Fourth Proportional to 239,721.81, 330,824.03 and 130,832.09
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Solution
The fourth proportional to 239,721.81, 330,824.03 and 130,832.09 is: 180,552.61
Step by Step Solution
- Step 1: Write the proportion equation
239,721.81 : 330,824.03 = 130,832.09 : x - Step 2: Convert to fraction form
239,721.81/330,824.03 = 130,832.09/x - Step 3: Cross multiply
239,721.81x = 330,824.03 × 130,832.09 - Step 4: Simplify right side
239,721.81x = 43,282,399,267.12 - Step 5: Solve for x
x = 43,282,399,267.12/239,721.81 - Step 6: Final answer
x = 180,552.61
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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.