Finding the Fourth Proportional to 312,175.98, 430,803.94 and 168,935.99
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Solution
The fourth proportional to 312,175.98, 430,803.94 and 168,935.99 is: 233,132.25
Step by Step Solution
- Step 1: Write the proportion equation
312,175.98 : 430,803.94 = 168,935.99 : x - Step 2: Convert to fraction form
312,175.98/430,803.94 = 168,935.99/x - Step 3: Cross multiply
312,175.98x = 430,803.94 × 168,935.99 - Step 4: Simplify right side
312,175.98x = 72,778,290,099.80 - Step 5: Solve for x
x = 72,778,290,099.80/312,175.98 - Step 6: Final answer
x = 233,132.25
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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.