Finding the Fourth Proportional to 402,496.29, 555,458.19 and 221,214.65
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Solution
The fourth proportional to 402,496.29, 555,458.19 and 221,214.65 is: 305,283.53
Step by Step Solution
- Step 1: Write the proportion equation
402,496.29 : 555,458.19 = 221,214.65 : x - Step 2: Convert to fraction form
402,496.29/555,458.19 = 221,214.65/x - Step 3: Cross multiply
402,496.29x = 555,458.19 × 221,214.65 - Step 4: Simplify right side
402,496.29x = 122,875,486,313.19 - Step 5: Solve for x
x = 122,875,486,313.19/402,496.29 - Step 6: Final answer
x = 305,283.53
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.