Finding the Fourth Proportional to 303,526.20, 455,289.30 and 214,879.80
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Solution
The fourth proportional to 303,526.20, 455,289.30 and 214,879.80 is: 322,319.70
Step by Step Solution
- Step 1: Write the proportion equation
303,526.20 : 455,289.30 = 214,879.80 : x - Step 2: Convert to fraction form
303,526.20/455,289.30 = 214,879.80/x - Step 3: Cross multiply
303,526.20x = 455,289.30 × 214,879.80 - Step 4: Simplify right side
303,526.20x = 97,832,473,726.14 - Step 5: Solve for x
x = 97,832,473,726.14/303,526.20 - Step 6: Final answer
x = 322,319.70
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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.