Finding the Fourth Proportional to 320,420.30, 480,673.65 and 110,122.70
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Solution
The fourth proportional to 320,420.30, 480,673.65 and 110,122.70 is: 165,198.90
Step by Step Solution
- Step 1: Write the proportion equation
320,420.30 : 480,673.65 = 110,122.70 : x - Step 2: Convert to fraction form
320,420.30/480,673.65 = 110,122.70/x - Step 3: Cross multiply
320,420.30x = 480,673.65 × 110,122.70 - Step 4: Simplify right side
320,420.30x = 52,933,080,156.86 - Step 5: Solve for x
x = 52,933,080,156.86/320,420.30 - Step 6: Final answer
x = 165,198.90
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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.