Finding the Fourth Proportional to 307,896.60, 461,428.74 and 139,207.44
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Solution
The fourth proportional to 307,896.60, 461,428.74 and 139,207.44 is: 208,623.00
Step by Step Solution
- Step 1: Write the proportion equation
307,896.60 : 461,428.74 = 139,207.44 : x - Step 2: Convert to fraction form
307,896.60/461,428.74 = 139,207.44/x - Step 3: Cross multiply
307,896.60x = 461,428.74 × 139,207.44 - Step 4: Simplify right side
307,896.60x = 64,234,313,637.83 - Step 5: Solve for x
x = 64,234,313,637.83/307,896.60 - Step 6: Final answer
x = 208,623.00
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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.