Finding the Fourth Proportional to 312,299.70, 430,970.64 and 169,056.06
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Solution
The fourth proportional to 312,299.70, 430,970.64 and 169,056.06 is: 233,295.77
Step by Step Solution
- Step 1: Write the proportion equation
312,299.70 : 430,970.64 = 169,056.06 : x - Step 2: Convert to fraction form
312,299.70/430,970.64 = 169,056.06/x - Step 3: Cross multiply
312,299.70x = 430,970.64 × 169,056.06 - Step 4: Simplify right side
312,299.70x = 72,858,198,374.08 - Step 5: Solve for x
x = 72,858,198,374.08/312,299.70 - Step 6: Final answer
x = 233,295.77
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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.