Finding the Fourth Proportional to 312,004.48, 430,564.56 and 168,764.08
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Solution
The fourth proportional to 312,004.48, 430,564.56 and 168,764.08 is: 232,893.55
Step by Step Solution
- Step 1: Write the proportion equation
312,004.48 : 430,564.56 = 168,764.08 : x - Step 2: Convert to fraction form
312,004.48/430,564.56 = 168,764.08/x - Step 3: Cross multiply
312,004.48x = 430,564.56 × 168,764.08 - Step 4: Simplify right side
312,004.48x = 72,663,831,849.00 - Step 5: Solve for x
x = 72,663,831,849.00/312,004.48 - Step 6: Final answer
x = 232,893.55
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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.