Finding the Fourth Proportional to 312,125.99, 430,730.79 and 168,882.89
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Solution
The fourth proportional to 312,125.99, 430,730.79 and 168,882.89 is: 233,056.72
Step by Step Solution
- Step 1: Write the proportion equation
312,125.99 : 430,730.79 = 168,882.89 : x - Step 2: Convert to fraction form
312,125.99/430,730.79 = 168,882.89/x - Step 3: Cross multiply
312,125.99x = 430,730.79 × 168,882.89 - Step 4: Simplify right side
312,125.99x = 72,743,058,473.53 - Step 5: Solve for x
x = 72,743,058,473.53/312,125.99 - Step 6: Final answer
x = 233,056.72
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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.