Finding the Fourth Proportional to 320,774.10, 442,654.64 and 177,520.74
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Solution
The fourth proportional to 320,774.10, 442,654.64 and 177,520.74 is: 244,971.08
Step by Step Solution
- Step 1: Write the proportion equation
320,774.10 : 442,654.64 = 177,520.74 : x - Step 2: Convert to fraction form
320,774.10/442,654.64 = 177,520.74/x - Step 3: Cross multiply
320,774.10x = 442,654.64 × 177,520.74 - Step 4: Simplify right side
320,774.10x = 78,580,379,257.23 - Step 5: Solve for x
x = 78,580,379,257.23/320,774.10 - Step 6: Final answer
x = 244,971.08
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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.