Finding the Fourth Proportional to 361,257.09, 498,062.14 and 310,811.68
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Solution
The fourth proportional to 361,257.09, 498,062.14 and 310,811.68 is: 428,513.47
Step by Step Solution
- Step 1: Write the proportion equation
361,257.09 : 498,062.14 = 310,811.68 : x - Step 2: Convert to fraction form
361,257.09/498,062.14 = 310,811.68/x - Step 3: Cross multiply
361,257.09x = 498,062.14 × 310,811.68 - Step 4: Simplify right side
361,257.09x = 154,803,530,477.80 - Step 5: Solve for x
x = 154,803,530,477.80/361,257.09 - Step 6: Final answer
x = 428,513.47
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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.