Finding the Fourth Proportional to 303,707.20, 455,560.80 and 93,317.80
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Solution
The fourth proportional to 303,707.20, 455,560.80 and 93,317.80 is: 139,976.70
Step by Step Solution
- Step 1: Write the proportion equation
303,707.20 : 455,560.80 = 93,317.80 : x - Step 2: Convert to fraction form
303,707.20/455,560.80 = 93,317.80/x - Step 3: Cross multiply
303,707.20x = 455,560.80 × 93,317.80 - Step 4: Simplify right side
303,707.20x = 42,511,931,622.24 - Step 5: Solve for x
x = 42,511,931,622.24/303,707.20 - Step 6: Final answer
x = 139,976.70
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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.