Finding the Fourth Proportional to 312,131.48, 430,740.06 and 168,894.06
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Solution
The fourth proportional to 312,131.48, 430,740.06 and 168,894.06 is: 233,073.05
Step by Step Solution
- Step 1: Write the proportion equation
312,131.48 : 430,740.06 = 168,894.06 : x - Step 2: Convert to fraction form
312,131.48/430,740.06 = 168,894.06/x - Step 3: Cross multiply
312,131.48x = 430,740.06 × 168,894.06 - Step 4: Simplify right side
312,131.48x = 72,749,437,538.04 - Step 5: Solve for x
x = 72,749,437,538.04/312,131.48 - Step 6: Final answer
x = 233,073.05
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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.