Finding the Fourth Proportional to 314,639.20, 471,958.80 and 93,023.20
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Solution
The fourth proportional to 314,639.20, 471,958.80 and 93,023.20 is: 139,534.80
Step by Step Solution
- Step 1: Write the proportion equation
314,639.20 : 471,958.80 = 93,023.20 : x - Step 2: Convert to fraction form
314,639.20/471,958.80 = 93,023.20/x - Step 3: Cross multiply
314,639.20x = 471,958.80 × 93,023.20 - Step 4: Simplify right side
314,639.20x = 43,903,117,844.16 - Step 5: Solve for x
x = 43,903,117,844.16/314,639.20 - Step 6: Final answer
x = 139,534.80
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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.