Finding the Fourth Proportional to 296,887.36, 445,484.16 and 139,131.84
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Solution
The fourth proportional to 296,887.36, 445,484.16 and 139,131.84 is: 208,769.52
Step by Step Solution
- Step 1: Write the proportion equation
296,887.36 : 445,484.16 = 139,131.84 : x - Step 2: Convert to fraction form
296,887.36/445,484.16 = 139,131.84/x - Step 3: Cross multiply
296,887.36x = 445,484.16 × 139,131.84 - Step 4: Simplify right side
296,887.36x = 61,981,030,871.65 - Step 5: Solve for x
x = 61,981,030,871.65/296,887.36 - Step 6: Final answer
x = 208,769.52
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1.5x scale
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.