Finding the Fourth Proportional to 320,688.72, 442,518.39 and 177,445.08
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Solution
The fourth proportional to 320,688.72, 442,518.39 and 177,445.08 is: 244,856.48
Step by Step Solution
- Step 1: Write the proportion equation
320,688.72 : 442,518.39 = 177,445.08 : x - Step 2: Convert to fraction form
320,688.72/442,518.39 = 177,445.08/x - Step 3: Cross multiply
320,688.72x = 442,518.39 × 177,445.08 - Step 4: Simplify right side
320,688.72x = 78,522,711,115.02 - Step 5: Solve for x
x = 78,522,711,115.02/320,688.72 - Step 6: Final answer
x = 244,856.48
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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.