Finding the Fourth Proportional to 422,488.79, 633,733.65 and 106,945.70
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Solution
The fourth proportional to 422,488.79, 633,733.65 and 106,945.70 is: 160,418.66
Step by Step Solution
- Step 1: Write the proportion equation
422,488.79 : 633,733.65 = 106,945.70 : x - Step 2: Convert to fraction form
422,488.79/633,733.65 = 106,945.70/x - Step 3: Cross multiply
422,488.79x = 633,733.65 × 106,945.70 - Step 4: Simplify right side
422,488.79x = 67,775,085,644.14 - Step 5: Solve for x
x = 67,775,085,644.14/422,488.79 - Step 6: Final answer
x = 160,418.66
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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.