Finding the Fourth Proportional to 312,201.96, 430,838.54 and 176,237.09
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Solution
The fourth proportional to 312,201.96, 430,838.54 and 176,237.09 is: 243,207.09
Step by Step Solution
- Step 1: Write the proportion equation
312,201.96 : 430,838.54 = 176,237.09 : x - Step 2: Convert to fraction form
312,201.96/430,838.54 = 176,237.09/x - Step 3: Cross multiply
312,201.96x = 430,838.54 × 176,237.09 - Step 4: Simplify right side
312,201.96x = 75,929,730,549.45 - Step 5: Solve for x
x = 75,929,730,549.45/312,201.96 - Step 6: Final answer
x = 243,207.09
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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.