Finding the Fourth Proportional to 239,923.84, 331,145.28 and 139,315.84
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Solution
The fourth proportional to 239,923.84, 331,145.28 and 139,315.84 is: 192,285.11
Step by Step Solution
- Step 1: Write the proportion equation
239,923.84 : 331,145.28 = 139,315.84 : x - Step 2: Convert to fraction form
239,923.84/331,145.28 = 139,315.84/x - Step 3: Cross multiply
239,923.84x = 331,145.28 × 139,315.84 - Step 4: Simplify right side
239,923.84x = 46,133,782,845.24 - Step 5: Solve for x
x = 46,133,782,845.24/239,923.84 - Step 6: Final answer
x = 192,285.11
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1.5x scale
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.