Finding the Fourth Proportional to 303,501.80, 455,252.70 and 78,843.80
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Solution
The fourth proportional to 303,501.80, 455,252.70 and 78,843.80 is: 118,265.70
Step by Step Solution
- Step 1: Write the proportion equation
303,501.80 : 455,252.70 = 78,843.80 : x - Step 2: Convert to fraction form
303,501.80/455,252.70 = 78,843.80/x - Step 3: Cross multiply
303,501.80x = 455,252.70 × 78,843.80 - Step 4: Simplify right side
303,501.80x = 35,893,852,828.26 - Step 5: Solve for x
x = 35,893,852,828.26/303,501.80 - Step 6: Final answer
x = 118,265.70
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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.