Finding the Fourth Proportional to 509,216.36, 764,213.34 and 256,749.08
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Solution
The fourth proportional to 509,216.36, 764,213.34 and 256,749.08 is: 385,319.65
Step by Step Solution
- Step 1: Write the proportion equation
509,216.36 : 764,213.34 = 256,749.08 : x - Step 2: Convert to fraction form
509,216.36/764,213.34 = 256,749.08/x - Step 3: Cross multiply
509,216.36x = 764,213.34 × 256,749.08 - Step 4: Simplify right side
509,216.36x = 196,211,071,968.73 - Step 5: Solve for x
x = 196,211,071,968.73/509,216.36 - Step 6: Final answer
x = 385,319.65
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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.