Finding the Fourth Proportional to 303,855.06, 455,782.80 and 79,214.94
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Solution
The fourth proportional to 303,855.06, 455,782.80 and 79,214.94 is: 118,822.46
Step by Step Solution
- Step 1: Write the proportion equation
303,855.06 : 455,782.80 = 79,214.94 : x - Step 2: Convert to fraction form
303,855.06/455,782.80 = 79,214.94/x - Step 3: Cross multiply
303,855.06x = 455,782.80 × 79,214.94 - Step 4: Simplify right side
303,855.06x = 36,104,807,155.03 - Step 5: Solve for x
x = 36,104,807,155.03/303,855.06 - Step 6: Final answer
x = 118,822.46
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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.