Finding the Fourth Proportional to 303,480.80, 455,221.20 and 103,807.70
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Solution
The fourth proportional to 303,480.80, 455,221.20 and 103,807.70 is: 155,711.55
Step by Step Solution
- Step 1: Write the proportion equation
303,480.80 : 455,221.20 = 103,807.70 : x - Step 2: Convert to fraction form
303,480.80/455,221.20 = 103,807.70/x - Step 3: Cross multiply
303,480.80x = 455,221.20 × 103,807.70 - Step 4: Simplify right side
303,480.80x = 47,255,465,763.24 - Step 5: Solve for x
x = 47,255,465,763.24/303,480.80 - Step 6: Final answer
x = 155,711.55
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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.