Finding the Fourth Proportional to 409,036.70, 613,583.09 and 139,055.00
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Solution
The fourth proportional to 409,036.70, 613,583.09 and 139,055.00 is: 208,592.03
Step by Step Solution
- Step 1: Write the proportion equation
409,036.70 : 613,583.09 = 139,055.00 : x - Step 2: Convert to fraction form
409,036.70/613,583.09 = 139,055.00/x - Step 3: Cross multiply
409,036.70x = 613,583.09 × 139,055.00 - Step 4: Simplify right side
409,036.70x = 85,321,792,816.76 - Step 5: Solve for x
x = 85,321,792,816.76/409,036.70 - Step 6: Final answer
x = 208,592.03
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.