Finding the Fourth Proportional to 312,175.87, 430,803.77 and 168,935.87
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Solution
The fourth proportional to 312,175.87, 430,803.77 and 168,935.87 is: 233,132.09
Step by Step Solution
- Step 1: Write the proportion equation
312,175.87 : 430,803.77 = 168,935.87 : x - Step 2: Convert to fraction form
312,175.87/430,803.77 = 168,935.87/x - Step 3: Cross multiply
312,175.87x = 430,803.77 × 168,935.87 - Step 4: Simplify right side
312,175.87x = 72,778,211,183.58 - Step 5: Solve for x
x = 72,778,211,183.58/312,175.87 - Step 6: Final answer
x = 233,132.09
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1.5x scale
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.