Finding the Fourth Proportional to 422,623.65, 633,879.99 and 209,308.53
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Solution
The fourth proportional to 422,623.65, 633,879.99 and 209,308.53 is: 313,935.32
Step by Step Solution
- Step 1: Write the proportion equation
422,623.65 : 633,879.99 = 209,308.53 : x - Step 2: Convert to fraction form
422,623.65/633,879.99 = 209,308.53/x - Step 3: Cross multiply
422,623.65x = 633,879.99 × 209,308.53 - Step 4: Simplify right side
422,623.65x = 132,676,488,903.32 - Step 5: Solve for x
x = 132,676,488,903.32/422,623.65 - Step 6: Final answer
x = 313,935.32
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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.