Finding the Fourth Proportional to 445,478.57, 668,158.46 and 125,656.14
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Solution
The fourth proportional to 445,478.57, 668,158.46 and 125,656.14 is: 188,467.45
Step by Step Solution
- Step 1: Write the proportion equation
445,478.57 : 668,158.46 = 125,656.14 : x - Step 2: Convert to fraction form
445,478.57/668,158.46 = 125,656.14/x - Step 3: Cross multiply
445,478.57x = 668,158.46 × 125,656.14 - Step 4: Simplify right side
445,478.57x = 83,958,209,526.18 - Step 5: Solve for x
x = 83,958,209,526.18/445,478.57 - Step 6: Final answer
x = 188,467.45
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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.