Finding the Fourth Proportional to 310,219.20, 465,328.80 and 110,764.80
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Solution
The fourth proportional to 310,219.20, 465,328.80 and 110,764.80 is: 166,147.20
Step by Step Solution
- Step 1: Write the proportion equation
310,219.20 : 465,328.80 = 110,764.80 : x - Step 2: Convert to fraction form
310,219.20/465,328.80 = 110,764.80/x - Step 3: Cross multiply
310,219.20x = 465,328.80 × 110,764.80 - Step 4: Simplify right side
310,219.20x = 51,542,051,466.24 - Step 5: Solve for x
x = 51,542,051,466.24/310,219.20 - Step 6: Final answer
x = 166,147.20
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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.