Finding the Fourth Proportional to 312,213.48, 430,854.57 and 168,973.53
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Solution
The fourth proportional to 312,213.48, 430,854.57 and 168,973.53 is: 233,183.45
Step by Step Solution
- Step 1: Write the proportion equation
312,213.48 : 430,854.57 = 168,973.53 : x - Step 2: Convert to fraction form
312,213.48/430,854.57 = 168,973.53/x - Step 3: Cross multiply
312,213.48x = 430,854.57 × 168,973.53 - Step 4: Simplify right side
312,213.48x = 72,803,017,609.53 - Step 5: Solve for x
x = 72,803,017,609.53/312,213.48 - Step 6: Final answer
x = 233,183.45
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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.