Finding the Fourth Proportional to 492,157.20, 738,235.80 and 243,325.20
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Solution
The fourth proportional to 492,157.20, 738,235.80 and 243,325.20 is: 364,987.80
Step by Step Solution
- Step 1: Write the proportion equation
492,157.20 : 738,235.80 = 243,325.20 : x - Step 2: Convert to fraction form
492,157.20/738,235.80 = 243,325.20/x - Step 3: Cross multiply
492,157.20x = 738,235.80 × 243,325.20 - Step 4: Simplify right side
492,157.20x = 179,631,373,682.16 - Step 5: Solve for x
x = 179,631,373,682.16/492,157.20 - Step 6: Final answer
x = 364,987.80
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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.