Finding the Fourth Proportional to 303,416.80, 455,125.20 and 103,743.70
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Solution
The fourth proportional to 303,416.80, 455,125.20 and 103,743.70 is: 155,615.55
Step by Step Solution
- Step 1: Write the proportion equation
303,416.80 : 455,125.20 = 103,743.70 : x - Step 2: Convert to fraction form
303,416.80/455,125.20 = 103,743.70/x - Step 3: Cross multiply
303,416.80x = 455,125.20 × 103,743.70 - Step 4: Simplify right side
303,416.80x = 47,216,372,211.24 - Step 5: Solve for x
x = 47,216,372,211.24/303,416.80 - Step 6: Final answer
x = 155,615.55
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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.