Finding the Fourth Proportional to 320,420.21, 480,703.01 and 170,581.55
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Solution
The fourth proportional to 320,420.21, 480,703.01 and 170,581.55 is: 255,911.02
Step by Step Solution
- Step 1: Write the proportion equation
320,420.21 : 480,703.01 = 170,581.55 : x - Step 2: Convert to fraction form
320,420.21/480,703.01 = 170,581.55/x - Step 3: Cross multiply
320,420.21x = 480,703.01 × 170,581.55 - Step 4: Simplify right side
320,420.21x = 81,999,061,279.04 - Step 5: Solve for x
x = 81,999,061,279.04/320,420.21 - Step 6: Final answer
x = 255,911.02
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.