Finding the Fourth Proportional to 311,741.93, 430,203.60 and 168,501.98
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Solution
The fourth proportional to 311,741.93, 430,203.60 and 168,501.98 is: 232,532.59
Step by Step Solution
- Step 1: Write the proportion equation
311,741.93 : 430,203.60 = 168,501.98 : x - Step 2: Convert to fraction form
311,741.93/430,203.60 = 168,501.98/x - Step 3: Cross multiply
311,741.93x = 430,203.60 × 168,501.98 - Step 4: Simplify right side
311,741.93x = 72,490,156,252.11 - Step 5: Solve for x
x = 72,490,156,252.11/311,741.93 - Step 6: Final answer
x = 232,532.59
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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.