Finding the Fourth Proportional to 287,176.98, 430,765.59 and 129,220.92
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Solution
The fourth proportional to 287,176.98, 430,765.59 and 129,220.92 is: 193,831.43
Step by Step Solution
- Step 1: Write the proportion equation
287,176.98 : 430,765.59 = 129,220.92 : x - Step 2: Convert to fraction form
287,176.98/430,765.59 = 129,220.92/x - Step 3: Cross multiply
287,176.98x = 430,765.59 × 129,220.92 - Step 4: Simplify right side
287,176.98x = 55,663,925,844.14 - Step 5: Solve for x
x = 55,663,925,844.14/287,176.98 - Step 6: Final answer
x = 193,831.43
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.