Finding the Fourth Proportional to 303,472.80, 455,209.20 and 103,799.70
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Solution
The fourth proportional to 303,472.80, 455,209.20 and 103,799.70 is: 155,699.55
Step by Step Solution
- Step 1: Write the proportion equation
303,472.80 : 455,209.20 = 103,799.70 : x - Step 2: Convert to fraction form
303,472.80/455,209.20 = 103,799.70/x - Step 3: Cross multiply
303,472.80x = 455,209.20 × 103,799.70 - Step 4: Simplify right side
303,472.80x = 47,250,578,397.24 - Step 5: Solve for x
x = 47,250,578,397.24/303,472.80 - Step 6: Final answer
x = 155,699.55
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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.