Finding the Fourth Proportional to 445,328.80, 668,410.80 and 235,117.60
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Solution
The fourth proportional to 445,328.80, 668,410.80 and 235,117.60 is: 352,896.88
Step by Step Solution
- Step 1: Write the proportion equation
445,328.80 : 668,410.80 = 235,117.60 : x - Step 2: Convert to fraction form
445,328.80/668,410.80 = 235,117.60/x - Step 3: Cross multiply
445,328.80x = 668,410.80 × 235,117.60 - Step 4: Simplify right side
445,328.80x = 157,155,143,110.08 - Step 5: Solve for x
x = 157,155,143,110.08/445,328.80 - Step 6: Final answer
x = 352,896.88
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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.