Finding the Fourth Proportional to 422,070.20, 633,138.11 and 122,555.70
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Solution
The fourth proportional to 422,070.20, 633,138.11 and 122,555.70 is: 183,843.08
Step by Step Solution
- Step 1: Write the proportion equation
422,070.20 : 633,138.11 = 122,555.70 : x - Step 2: Convert to fraction form
422,070.20/633,138.11 = 122,555.70/x - Step 3: Cross multiply
422,070.20x = 633,138.11 × 122,555.70 - Step 4: Simplify right side
422,070.20x = 77,594,684,267.73 - Step 5: Solve for x
x = 77,594,684,267.73/422,070.20 - Step 6: Final answer
x = 183,843.08
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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.