Finding the Fourth Proportional to 311,792.70, 430,263.45 and 197,133.06
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Solution
The fourth proportional to 311,792.70, 430,263.45 and 197,133.06 is: 272,037.00
Step by Step Solution
- Step 1: Write the proportion equation
311,792.70 : 430,263.45 = 197,133.06 : x - Step 2: Convert to fraction form
311,792.70/430,263.45 = 197,133.06/x - Step 3: Cross multiply
311,792.70x = 430,263.45 × 197,133.06 - Step 4: Simplify right side
311,792.70x = 84,819,150,504.66 - Step 5: Solve for x
x = 84,819,150,504.66/311,792.70 - Step 6: Final answer
x = 272,037.00
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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.