Finding the Fourth Proportional to 296,885.36, 445,481.16 and 139,129.84
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Solution
The fourth proportional to 296,885.36, 445,481.16 and 139,129.84 is: 208,766.52
Step by Step Solution
- Step 1: Write the proportion equation
296,885.36 : 445,481.16 = 139,129.84 : x - Step 2: Convert to fraction form
296,885.36/445,481.16 = 139,129.84/x - Step 3: Cross multiply
296,885.36x = 445,481.16 × 139,129.84 - Step 4: Simplify right side
296,885.36x = 61,979,722,513.81 - Step 5: Solve for x
x = 61,979,722,513.81/296,885.36 - Step 6: Final answer
x = 208,766.52
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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.